The series documents the Brooklyn Union Gas Company's Cinderella projects. Starting in the 1960s, the company purchased and refurbished abandoned brownstones in the Park Slope neighborhood of Brooklyn in order to attract new residents to the neighborhood. EGO designed and furnished the interiors of the first Cinderella home at 211 Berkeley Place in 1968, and EHO was vocal proponent of the program. In 1978 the Ortners recieved the company's Cinderella Award, and were featured in Brooklyn Union Gas Company advertisements.
The series consists of publications, correspondence, films, histories on the program and the company, and ephemera, dating from 1968 to 2008. Of note are three 16mm films produced by the company to promote the program in the 1970s.