Otis Leonard Wheelock (1816 - 1893) was an architect in upstate New York and Chicago. He and his wife had two adopted children, a son Harry B. Wheelock who was an architect and a daughter.[1]
George H. Harlow studied under him.
He was a partner of W. W. Boyington in the firm of Boyington & Wheelock. He also partnered with William Wilson Clay. George Beaumont and Minard Lefever Beers are architects who worked at his firms.[2]