Hartwell and Richardson was a Boston, Massachusetts architectural firm established in 1881, by Henry Walker Hartwell (1833–1919) and William Cummings Richardson (1854–1935). The firm contributed significantly to the current building stock and architecture of the greater Boston area. Many of its buildings are listed on the National Register of Historic Places.
Hartwell was the son of Boston painter Alonzo Hartwell. He did not attend college, and apprenticed with the architects Joseph E. and Hammatt Billings – (Billings & Billings). He opened his own office in 1856, and was one of the founding members of the Boston Society of Architects. He served in Company A of the 44th Regiment Massachusetts Volunteer Infantry during the American Civil War. In the late 1860s, he began a partnership with Albert E. Swasey, Jr. – Hartwell & Swasey – that lasted until 1877. He briefly paired with George Thomas Tilden, before beginning the partnership with Richardson.
Richardson, twenty years younger than Hartwell, studied architecture at the Massachusetts Institute of Technology. He won the Boston Society of Architects' 1875 prize as best young architect, and worked on his own until the 1881 partnership. Richardson was the principal designer in the firm, and Hartwell took care of the engineering and oversaw construction.
The firm's clients tended to be successful businessmen, rather than Boston "society." Early on, the firm specialized in churches and municipal buildings. First Baptist Church (1881) in Cambridge, Massachusetts and Town Hall (1881) in Belmont, Massachusetts, both completed in the first year of the partnership, probably were Hartwell's designs. Richardson's polychromy added lightness to Christ Church (1882) in Andover, Massachusetts and the First Spiritual Temple (1885) in Boston, Massachusetts. Even in informal styles such as the Queen Anne or Shingle-Style, that allowed for enormous freedom, Richardson's designs were conservative, sometimes even symmetrical, but beautifully detailed. Of particular note is a cluster of distinguished 1880s houses in the Avon Hill neighborhood of Cambridge.