The Pretzinger name belongs to a family of architects and engineers in Dayton, Ohio. Albert Pretzinger (born February 28, 1863) started the family's architectural legacy.
In 1892 he was with Peters, Burns & Pretzinger. He established his own firm Albert Pretzinger Architect by 1906. He was part of Pretzinger & Musselman in 1913 and Pretzinger & Pretzinger in 1928. The firm became Freeman A. Pretzinger Architect in 1941 before switching to Pretzinger and Pretzinger by 1962, and Pretzinger and Pretzinger Architects and Engineers in 1968. In 1980 the firm became Robert B. Pretzinger, Consulting Engineer, changing in 1982 to Pretzinger and Klenke, Inc. Consulting Engineers.[1] After Thomas Klenke retired in the mid-1990s, the firm's name reverted to Robert B. Pretzinger, Consulting Engineer. The firm closed in 2010 with the death of Robert Pretzinger.