Dear Gillian,
Thank you for your interest in the Irish Thompsons. I expect you have found quite a few of them in your searching. I don't think I have a connection to West Hartlepool, but the reason I have a marriage certificate for there is I was looking for a first marriage between my grandfather Charles Herbert Thompson (1887 - 1951) to a lady called Ada, and this was the nearest match. Unfortunately my gamble did not pay off.
The details on the certificate may be of help to you, perhaps a brother or cousin of your John Henry Thompson so here they are.
8th March, 1919 at the parish church of Christ Church, West Hartlepool.
Charles Henry Thompson, aged 31, bachelor, Petty Officer Royal Navy, address: 60 Commercial Street, Middleton. Father: Charles Thompson, Father's occupation: Engineer
Ada Pearson, aged 20, spinster, address: 60 Commercial Street, Middleton. Father John Pearson, Father's occupation Shipyard Labourer.
Witnesses - J.C. Pearson, Ellen Boyd & William Boyd
All my Irish Thompsons from Co. Down seem to have settled in the Houghton-le-Spring, West Rainton, Rainton Gate, Fence Houses areas, that is until my grandfather decided that going down the pit was no longer for him. So after WWI he went south to London, where he met and married my grandmother Florence Marther Fricker (wife no.2).
Good luck in unravelling all your Thompsons.
Patsy