2 Rare 1820's Tiny Sunday School Union Books collection

When I first got these from an estate where the person had saved everything her family had ever owned from the 1800's on, all I could find about them was that there was ONE COPY in a library at Drew University , N.J. It was from a Methodist S.S.U. in N.Y. .And in my notes it says an antiquarian dealer had one for $266. that was 2 1/2'' x 3 3/4'' , and one in the World Catalog from 1827 that was a bit larger for either $458 or $45, can't collection read my writing . The one that has the stories of Memoir of Elizabeth and Memoir of Mary Gosner , starting with '' Boy of Dundee '' (one page and a picture ) is 4.25'' x 2.75'' . The one starting with '' THE FALL OF MAN '' , then '' CAIN AND ABEL '' then '' NOAH AND THE FLOOD '' then '' ABRAHAM '' is 2.75'' x 4.25'' and is the lighter colored one . I can send more pics of the other pics in the books and inside back and front covers . I don't want to keep opening them . I took pics of all already . They took WAY TOO LONG to upload so I resized them , now you can barely read the wording . So I can tell you what some more of that says too . The 2 pages telling about Elizabeth and Mary say they are memoirs of the girls by their pastors of the churches to which they belonged .