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Mammoth Mart

Retailer / private label

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Defunct American discount department store chain that helped pioneer the large-format, downscale suburban discount store.

Last updated August 24, 2026

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Overview

Mammoth Mart was an American discount department store chain based in the northeastern United States, with its principal presence in New England. Founded by Max Coffman and Henry Gornstein in Framingham, Massachusetts, in 1956, the business began in a mill building and was initially known as Mammoth Mills. The original setting influenced the company’s early identity, but the chain soon developed a broader retail format and adopted the Mammoth Mart name in 1962. The company is notable in American retail history because it represented an early version of the large, downscale department store: a broad assortment of practical merchandise sold from relatively austere, functional buildings, often placed in suburban shopping-center locations. Rather than emphasizing a traditional department-store atmosphere, Mammoth Mart focused on convenience, volume, and value across categories such as housewares, hardware, and clothing. Its format anticipated the later expansion of better-known discount department store chains, including Kmart, Zayre, and Bradlees. Mammoth Mart expanded substantially during the 1960s. By 1969, it operated 35 stores. The chain also attempted to broaden its retail portfolio beyond its core department-store business. In March 1970, it acquired the eight-store Boston Baby chain, a retailer of juvenile merchandise. The Boston Baby division eventually reached 15 stores, but the venture did not succeed and was liquidated in 1973. In September 1970, Mammoth Mart also acquired two locations from Key Stores. The company’s later years were shaped by a combination of operational and macroeconomic pressures. The cost associated with liquidating Boston Baby coincided with the economic consequences of the 1973 oil crisis, rising inflation, increased inventory shrinkage, and the effects of Phase IV of the Nixon administration’s wage and price control program. These pressures weakened the chain’s financial position. On June 17, 1974, Mammoth Mart sought protection under Chapter XI of the Bankruptcy Act of 1898, an earlier bankruptcy framework related to the modern Chapter 11 process. Mammoth Mart remained in bankruptcy proceedings until it was acquired by King’s Department Stores, a now-defunct retailer, for $43 million on June 15, 1977. The remaining Mammoth Mart locations were converted to the King’s name by spring 1979, ending the chain as an independent retail brand. Its advertising mascot was Marty the elephant, depicted as a smiling mammoth wearing a blazer. Although Mammoth Mart no longer operates, its importance lies in its early contribution to the discount-department-store model and in the way its rise and failure illustrate the financial and competitive pressures facing regional retailers during the 1970s.

History

Mammoth Mart began in 1956 when Max Coffman and Henry Gornstein opened a store in Framingham, Massachusetts. The first premises occupied a mill building whose existing name gave the business its original name, Mammoth Mills. In 1962, the company changed its name to Mammoth Mart as it developed a recognizable discount-department-store identity. The chain’s operating concept was distinctive for its time. It sold a broad range of everyday merchandise, including housewares, hardware, and clothing, in plain, functional buildings rather than in the more formal surroundings traditionally associated with department stores. Many locations were situated in suburban shopping centers. This combination of broad assortment, low-price orientation, and utilitarian facilities made Mammoth Mart an early example of the large-format discount department store. Later regional and national retailers, including Kmart, Zayre, and Bradlees, expanded on a similar general concept. Mammoth Mart grew during the 1960s and had 35 stores by 1969. Its expansion strategy included both organic store growth and acquisitions. In March 1970, the company purchased Boston Baby, an eight-unit chain selling juvenile merchandise. The acquired division later grew to 15 stores, but the diversification failed and was liquidated in 1973. Mammoth Mart also acquired two stores from Key Stores in September 1970. The company subsequently faced a difficult retail and economic environment. The expense of closing Boston Baby was compounded by the effects of the 1973 oil crisis, inflation, increased shrinkage, and the constraints associated with Phase IV of the Nixon administration’s wage and price control program. These factors undermined the chain’s financial stability, and Mammoth Mart filed for protection under Chapter XI of the Bankruptcy Act of 1898 on June 17, 1974. Chapter XI was part of the earlier federal bankruptcy system that preceded the modern Chapter 11 framework. On June 15, 1977, King’s Department Stores acquired Mammoth Mart for $43 million. The buyer was itself later defunct, but its acquisition ended Mammoth Mart’s independent corporate existence. Remaining stores were progressively converted to the King’s banner, with the final locations rebranded by spring 1979. Mammoth Mart also used a distinctive advertising character, Marty the elephant. Marty was presented as a smiling, blazer-wearing mammoth, reinforcing the chain’s name and providing a friendly mascot for a business otherwise associated with plain, practical retail environments. The brand is now defunct, but it remains relevant as an early regional example of the discount department-store format.

  • 1979

    Brand disappears from stores

    [1]

    The remaining stores had been rebranded as King’s by spring, ending Mammoth Mart’s retail operation under its own name.

  • 1977

    Acquisition by King’s Department Stores

    [1]

    King’s Department Stores acquired Mammoth Mart for $43 million on June 15.

  • 1974

    Chapter XI bankruptcy filing

    [1]

    Mammoth Mart filed for protection under Chapter XI of the Bankruptcy Act of 1898 on June 17.

  • 1973

    Boston Baby division is liquidated

    [1]

    The unsuccessful juvenile-merchandise diversification was liquidated after the division had expanded from eight to 15 stores.

  • 1970

    Boston Baby acquisition and Key Stores purchases

    [1]

    Mammoth Mart acquired Boston Baby in March and purchased two Key Stores locations in September.

  • 1969

    Chain reaches 35 stores

    [1]

    Mammoth Mart had expanded to 35 locations across its northeastern United States operating area.

  • 1962

    Mammoth Mills becomes Mammoth Mart

    [1]

    The chain adopted the Mammoth Mart name as its discount-department-store business developed.

  • 1956

    First store opens in Framingham

    [1]

    Max Coffman and Henry Gornstein opened the first store in Framingham, Massachusetts, initially operating under the name Mammoth Mills.

Products and positioning

Value-oriented discount department store offering practical general merchandise in large, functional suburban locations.

  • Discount department store · 1956

    General merchandise

    Mammoth Mart’s core offer was a broad assortment of practical, everyday department-store goods sold at a discount-oriented value proposition. The range included housewares, hardware, clothing, and other general merchandise. Its stores were designed around breadth and utility rather than a highly specialized or luxury presentation.

  • Juvenile merchandise retail

    Boston Baby

    Boston Baby was an acquired chain focused on juvenile merchandise. Mammoth Mart purchased its eight stores in 1970, and the division eventually reached 15 stores. The diversification was unsuccessful and was liquidated in 1973.

Brand decisions

  • 1977

    Sell the chain to King’s Department StoresM&A

    Background

    After filing for bankruptcy protection and operating under financial pressure, Mammoth Mart required a change in ownership.

    Action taken

    King’s Department Stores acquired Mammoth Mart for $43 million on June 15, 1977.

    Aftermath

    The remaining stores were converted to the King’s banner by spring 1979, ending Mammoth Mart as an independent brand.

    Acquisition price. $43 million (June 15, 1977)

  • 1974

    Seek Chapter XI bankruptcy protectionStrategy

    Background

    The failed Boston Baby liquidation, the 1973 oil crisis, inflation, increased shrinkage, and wage and price controls placed substantial pressure on the retailer.

    Action taken

    Mammoth Mart filed for protection under Chapter XI of the Bankruptcy Act of 1898 on June 17, 1974.

    Aftermath

    The chain was eventually acquired by King’s Department Stores in 1977, and its remaining locations were rebranded by spring 1979.

  • 1970

    Acquire Boston BabyM&A

    Background

    Mammoth Mart sought to diversify beyond its general discount department-store business by entering juvenile merchandise through the acquisition of the eight-unit Boston Baby chain.

    Action taken

    The company acquired Boston Baby in March 1970; the division later expanded to 15 stores.

    Aftermath

    The venture failed and was liquidated in 1973, adding to the financial pressures that preceded Mammoth Mart’s bankruptcy filing.

  • 1970

    Purchase two Key Stores locationsM&A

    Background

    The chain continued its regional expansion through store acquisitions during a period of growth.

    Action taken

    Mammoth Mart acquired two locations from Key Stores in September 1970.

    Aftermath

    The acquisition was followed by broader financial difficulties later in the decade, although the available reference does not separately assess the performance of these locations.

Recent events

  • 1979

    Mammoth Mart locations are rebranded as King’s[1]

    Other

    The remaining Mammoth Mart stores were converted to the King’s Department Stores identity by spring 1979, ending the original brand.

  • 1977

    King’s Department Stores acquires Mammoth Mart[1]

    M&A

    King’s Department Stores acquired Mammoth Mart for $43 million, taking control of the remaining chain after its bankruptcy proceedings.

  • 1974

    Mammoth Mart files for bankruptcy protection[1]

    Bankruptcy

    The chain filed under Chapter XI of the Bankruptcy Act of 1898 after financial pressure from the failed Boston Baby expansion, the 1973 oil crisis, inflation, inventory shrinkage, and wage and price controls.

Sources1 sources

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