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Oct 10, 2025  |  
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 | Remer,MN
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A Palm Beach tower long owned by the heiress to an American coal mining fortune has come up for sale at $38 million, including several residential units, retail space and two-car garage.

The six-story building off of Worth Avenue, surrounded by shorter structures, was owned for more than 50 years by Mimi Galloway Duncan, whose grandfather founded the Galloway Coal Mining Company.

The sale includes a two-story penthouse, three separate apartments, ground-floor retail space and garage in the Via Parigi district of midtown Palm Beach, known for its boutique shopping offerings.

The penthouse, where Galloway Duncan lived, has three bedrooms, three bathrooms, several fireplaces, a den and two balconies overlooking a golf course and coastline.

The first apartment is a three bed-two bath; the second is one bedroom with two full bathrooms, and a den; and the third apartment includes one bedroom, one bathroom and an oversized living and dining room.

The building was designed by Addison Mizner, a famous architect in the 1920s best known for his Mediterranean Revival and Spanish Colonial Revival style that “transformed the landscape of South Florida.”

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Daniel Petroni Photography
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Daniel Petroni Photography
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Daniel Petroni Photography

Mimi Galloway Duncan died in April at the age of 103. She was known for her lavish Palm Beach lifestyle, which included 54 years as a member of the exclusive Everglades Club, which has also counted heiress Eliza Osgood Vanderbilt Webb and boxer Jack Massey among its members. On her father's side, her grandfather Colonel Robert Galloway founded the Galloway Coal Mining Company and the Memphis Zoo. Her maternal grandfather C.P.J. Mooney was editor of the Commercial Appeal newspaper, which won a Pulitzer Prize for Mooney’s editorial activism against the Ku Klux Klan. She wrote the "Penelope’s Peeps" column at the Commercial Appeal, described as "a resolutely polite, yet lively, section of society news." She had an extensive art collection and was an avid opera singer and tennis player. She once had lunch at Windsor Castle with Queen Elizabeth, according to the Palm Beach Daily News.

Col. Robert Galloway built the 12,000-square-foot mansion known as Paisley Hall near the Memphis Zoo in 1910. Elvis is said to have considered buying the home before settling at Graceland. It is now on the National Register of Historic Places.