He was in Albany, New York by 1837, when he advertised the opening of an architectural office in partnership with John Klein.
[4] In 1839-40 he was in partnership with builder James A. Morse; the firm undertook alterations to the New York State Capitol and did work for the Lutheran Ebenezer church, both in the City of Albany.
[8] He remained in practice without a partner until 1852 when Francis Foster, a surveyor, joined Towle.
[10] Towle was a member of the Missouri (now Kansas City) chapter of the American Institute of Architects.
Architects Alfred Stone[11] and Samuel J. F. Thayer[12] trained in Towle's office.