Unable to find marriage but in 1871 Census Adelaide LEWIS is listed as Sister in Law.
In 1851 this family living very close to Thomas JAMES:
Piece Folio SchNo Town Surname Forename Relatn Marr Age Occupation County Place
1959 0311 004 Bradley Hill WAIT Samuel HD M 62 Rail Lab GLS Newnham
1959 0311 004 Bradley Hill WAIT Elizabeth WI M 49 - GLS Newnham
1959 0311 004 Bradley Hill WAIT Samuel SO U 20 Iron Miner GLS East Dean
1959 0311 004 Bradley Hill WAIT Adelaide DA U 12 - GLS East Dean
1959 0311 004 Bradley Hill WAIT Sarah DA U 14 - GLS East Dean
1959 0311 004 Bradley Hill WAIT Joseph SO U 3 - GLS East Dean

Mike