They lived at Walnut Cottage, Motherby Hill, Lincoln.
From 1892 he was working in partnership with his son William Malkinson Mortimer.
The contract ledgers indicate two offices between March 1905 and May 1911, with presumably William Malkinson Mortimer moving to Essex undertaking developments in Colchester and Romford, Essex.
[6] William Malkinson Mortimer died in Essex at "The Corner," Great Nelmes, Hornchurch, on the 27th day of February, 1912[7] This was year before his father died, but the company was continued as Mortimer and Davies from 1913 to 1916.
These are based on the Survey of Lincolnshire Database Asterby church.
St Luke, North Kyme - Drury and Mortimer 1877
St Catherine's Villas
Former Masonic Rooms, Witham Lodge, 1894
Liberal Club, Saltergate, Lincoln
Lincoln Racecourse grandstand, 1897
Fambrini & Daniels office, Canwick Road, 1889
Former Market Rasen Co-op store on Union Street 1897
Oddfellows Hall, Unity Square, 1897
25-29 Corporation Street
25-29 Corporation Street, Lincoln, 1898
St.Hughs Chambers, Corporation Street, Lincoln 1899