I did find, after some searching, a ref for the marriage of Thomas's 2nd marriage. He married Bridget MAHONEY in the latter part of 1866. Thomas's surname was reg'd under MEEN. Marriage recorded in the Reg'd District of Billericay, Essex.East Horndon comes under the registration disc't of Billericay, as I'm sure you know. I also found Eliza's death ref in the same reg disc't =Billericay.
Eliza died in the Sept Qtr of 1864 reg'd under MEEN.