Earl, Wayne Co., NY deed records show McClave activity from 1827 until 1851, with a final sale in 1867. (In 1844, Abigal A. Rich transfers land in Palmyra to Maria M. McClave. This is the only listing for Abigal Rich I have as I was only looking for McClaves at the time.) Sometime around 1850-1860, I believe they moved to Michigan.
On the Wane Co GenWeb site, I found the cemetery records for Uriah S. McClave and his daughter, Elizabeth S.After the entry for Uriah was added "[son of Abigal McClave Rich]". I queried the webmaster for more on this addition, but never got any further information, but it implies that Uriah was a son of Abigal's from a marriage previous to Rich. The cemetery listing for the daughter says "daughter of Uriah and Olive McClave" and lists her death date as "1958". I have visited the graves (they are only about 10 miles from where I live) and although I could not read the stone well, it was definately older than 1958!
Uriah shows up in the 1830 & 1840 census in Palmyra; in 1840 census there is a 60-70 yr old woman living with him, could be Abigal?
In the 1855 census for Marion, NY, we found Uriah's widow, "Olle" and 9 children, listed under "McLave". The children are: Maria 32, F Mordicai M. 29, M Jane 22, F Ann Eliza 21, F Martin L. 19, M Edwin A. 17, M Helen M. 15, F Willie 13, M Sarah E. 9, F
In the "Palmyra Courier" for April 10, 1863, I found an advertisment for "The New Choice Grapes" by "A.J. McClave, Nurseryman." He gives his location as both Palmyra and Marion and he says will be taking grapes to Hudson, Mich.
Civil War records show a Mordecai M McClave enlisting in Niles, MI in 1862 and Edwin A McClave elisting from Benton, MI in 1865. The ages when they enlisted match the ages in the 1855 Marion census.
The Berrien Co, MI Directory of 1892 lists Edwin A, Miss Helen M and Miss Maria M McClave living with Martin L McClave; occ; fruitgrower, in Benton Harbor, MI.