[3] After briefly working for Guy Lowell,[4] Loring studied at Beaux-Arts de Paris, passing the entrance exam in February 1907.

[3] He subsequently worked as an architect, first for Cass Gilbert in New York City, then at a firm he co-founded in Boston in 1912, Loring & Leland.

[5][4] Loring & Leland were architects of the Francis Buttrick Library in Waltham, Massachusetts, which is listed on the National Register of Historic Places.

[2] The wedding ceremony took place at St James's Palace in London and was attended by H. H. Asquith, then the Prime Minister, and Edward Grey, then the British Ambassador to the U.S.[7] Katharine died in 1956.

[8] During World War II, Loring headed a Massachusetts group responsible for camouflaging buildings considered possible aerial bombing targets.