The marriage was at Braddan 18310921 with child 6 months later bapt Douglas St Matthews 18320321

There was another Porter family Wm + Sarah (no fam name given) with two child including a John bapt Douglas St Georges 18110120

There were two Porter families in 1841c - one irish born gardener, another an English born Joseph a basket maker (he woukd appear to have remarried on the Island