In 1911 Frederick Foster (21) of Boston, dock manager's clerk, was boarding at 63 Tunnard St., Boston.
In the 1939 Register Frederick Foster (b. 20 Jul 1889), chairman & manager, director [of] coal goods firm, and wife Ivy F. Foster (b. 6 Sep 1889), unpaid domestic duties, were living at 72 Skirbeck Road , Boston M.B., Lincolnshire. Present was son Frederick Foster (b. 19 May 1918), training for a position in the firm as a coal exporter.
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Frederick Foster died aged 55 years. 3
Frederick Foster of 72 Skirbeck-road Boston Lincolnshire died 3 July 1945. Probate London 7 June 1946 to Midland Bank Executor and Trustee Co. Effects £33739 18s. 1d. 4