Bonsack and Pearce

Bonsack & Pearce was an architectural firm in St. Louis, Missouri in the United States. It was a partnership between Frederick Charles Bonsack III and Harvey J. Pearce. Several of their buildings are listed on the National Register of Historic Places (NRHP).

Bonsack's father, also named Frederick C. Bonsack (1859 - 1917), was a builder and architect. Bosnack III worked at his father's firm and served in the U.S. Navy during World War I. He then partnered with Pearce.

Pearce's younger brother Robert joined the firm. After the younger Bonsack died in 1953 the firm became Pearce & Pearce.