Hi Chris
The following may help you in identifying members of the family, and is a reconstruction of his service history while in the Coastguard Service from the CG Establishment Books.
He first entered the CG Service on 5 July 1831 having previously served on the Revenue Cruiser Mermaid. You could trace back his service on Mermaid by consulting her Muster Book (ADM 119/76) at the National Archives, unfortunately this can only be done in person. His first posting was to Priory CG Station near Hastings (ADM 175/5 pdf 249).
On 31 October 1831 he was promoted to Commisioned Boatman remaining at Priory. On 12 October 1841 he was transferred to Bridlington Quay (ADM 175/7 pdf 621), then on 29 August 1856 to Scarborough (ADM 175/7 pdf 615). The record shows he was promoted to Chief Officer, but he was still rated as a Comm. Boatman at Scarborough.
Given his age it cannot have been long before he was retired. The last record takes him up to 1862.
Pels I'm not sure you are correct about him being widowed in 1851, because on the 1871 Census Jane is very much alive (RG10/4818).
Hope this helps.
Martin
Coastguards of Yesteryear
PS: Have now found his discharge on superannuation, 30 June 1863 (ADM 175/9 pdf 56)