The Mary Leeds who had at least 3 of the children listed (I don't know about the Wood child which I have never noted before) was unmarried. There is a bastardy settlement for the Michael Impett children. There is a later bastardy settlement for Mary Leeds against R. Brackenbury "late of Lydd" for child Catherine. It is likely that this Mary was the daughter of John Leeds and his second wife Mary Baker (this couple is my direct line via their son William). The other Mary Leeds mentioned in my reply of 1st August to the other message was married. There are 3 burials for women named Mary Leeds at Lydd. 3 Nov 1841, aged 69, and 29 Dec 1830 aged 68. The earlier Nov 1781 burial was the 2nd wife of John Leeds above. There was an extensive Wood family in Lydd during that period, but I have not yet found any connection with the Leeds-George family until 1850's.
It is worth noting that there seem to be errors in the Lydd transcripts now on IGI. For example, some of Elizabeth George's children 1801 to 1824 are listed with the incorrect surname of Leeds, whereas in the registers, they were listed with the middle name of Leeds, last name George. (They appear to use either surname, or both, in subsequent records and census returns throughout 19th century and beyond. )