Have you checked the Milam Co, TX GenWeb site?On an old query is posted a Henry and Lavinia Moses Family reunion in Burleson Co, TX in 2001.You might want to try and get in touch with them.Sounds like there are a few others out there working on this family.
Be sure topost a query on that site, plus the Moses GenForum.There is an old 1999 query on that forum from a Ken Moses who has your Lavinia, seems to know when and where she married.But, his message history looks old, he may not be around anymore.So, post your own query, see what comes along.
In the Search This Forum box, you can try various things, like Lavinia, England, teacher, anything that is less common that make a match with your family.
Number 884 was in response to a lady who who is a descendant of Henry P. Moses.The response has a list of Moses information, including the following:Philip Henry Moses, son of John Moses, of Edgecomb Co., N. C. moved to Texas from North Carolina. He had a son, Henry Philip, who married Levina Ratcliff. Henry Philip was a school teacher at Rockdale, Texas. Children: Asa Perry, James Ratcliff, Henry Phillip, Jr., Matilda, Joshua Brock, William Augustine, Mark Sanders, Sally, Edward, Melvin Augustus, Lottie, Addie Virginia, Arthur Cary, George and Ida.
Go to Moses forum, on the right where it says Jump to # -- type in 884 and you will find the above post.
I'm wondering about the "born in England."What looks like two of Henry's sons are on the 1900 census Milam Co, TX, and they both say their father was born in So Carolina.Have you tracked down children of Henry, to see what others give as his birth location?