I'm trying to find the marriage of Thomas Burden and Hannah (unknown), probably in north Oxfordshire, but not in Hornton where they were living in the censuses from 1841.
From the censuses there are 7 children associated with the couple, but the registers of Hornton only show 4 baptisms. The children were born over a 19 year period from 1834 to 1853, so the marriage may have been about 1833, but there is a possibility that Thomas was married before in 1832 to Elizabeth Hicks and that he married Hannah around 1840. ( The 3 children born after 1840 have Hannah as mother in the registers.)
Eric