Thomas married Mary Hallam 20 August 1831 at Perth. Mary was a 21 year old servant to Wittenoom. Thomas was a Swan River boatman. Was granted 40 acres. He went to the Eastern Colonies and returned on 6 February 1853 per 'Jane'. He then went to South Australia per 'Adeona' and returned again on 29 November 1858. He left for South Australia again and returned in July 1875 on the 'Geffrard'. Qualified as a juror in Perth in 1860. Thomas Clayer died in South Australia in 1880. There is a memorial to him in East Perth Cemetery.