Recently, I found William Trinkwon on the 1861 Kent Census, in which he gives his place of birth as St Luke, Middlesex. This is probably St Luke, Old Street, Finsbury. I also found Elizabeth Trinkwon, who married Isaac Jordan, on the 1871 Kent Census, in whichshe gives her place of birth as Shoreditch. Elizabeth could be either of the following, although her age would suggest the second one : -
Birth:30 JUN 1800 Christening:23 JUL 1800 Saint Luke Old Street, Finsbury. Father:WILLIAM TRINGUAND Mother:MARY
Birth:15 APR 1803 Christening:08 MAY 1803 Saint Leonards, Shoreditch. Father:JAMES TRINGUAND Mother:AMELIA
Both of the above Churches are close to each other.
There several of Elizabeth's descendants on the later Censuses from 1881 to 1901.