Oh my goodness thank you so much for your replies and information, you are too kind.
From Thomas's marriage record to Elizabeth Harvey in Australia we know that his father is John Hayward Williams however that is all that is recorded and really all we know.
From our electoral records we know that Thomas lived with George Few in Adelaide and there are no records for him prior to the mid 1880s.
Further descendents are buried here all with different spelling from Hayward to Haywood to Heywood.