Bradlee and Winslow was formed in 1872, a partnership of Nathaniel Jeremiah Bradlee and Walter Thacher Winslow.  In mid-1882, George Homans Wetherell joined the partnership, and it became Bradlee, Winslow, and Wetherell.  After Bradlee’s death in December of 1888, the firm continued as Winslow and Wetherell.

Among the designs credited to Nathaniel Bradlee during his partnership with Winslow were the New England Mutual Life Building (1873; demolished) in Post Office Square, the Second Unitarian Church (1873; demolished) at 585 Boylston between Clarendon and Dartmouth, and the Young Men’s Christian Union building (1875).

Nathaniel Bradlee and the successor firms also are credited with designing buildings of the Baker’s Chocolate factory in Dorchester.

Back Bay Work