Hi Chooch
The records I have for William Tillcock born in Ware, Herts in 1807-1872 are that he married Sarah Hart c1808-1850 in St John the Baptist Church, Croydon, Surrey UK on the 22nd December 1839. He later married an "Emily" (c1813-1893) but cannot find any records of her BD or M!
William was the son of John Tillcock c1780-1825 and Mildred Chapman c1781-1868.
The 1851 Census shows that William was living with second wife Emily and daughter Jane 9 in East Wymer, Norfolk. His first wife Sarah died in 1850.
The 1841 Census showed William living with Sarah in Crib Street, Ware with son William 3 and daughter Jane 1 month. William died in Norfolk in May 1872.
Hope this is useful.