Checked this out today too. Apparently, according to Ancestry.com the middle name for Lawson Swanson was Calvin. They have his marriage to Eva Ann Bean as 2 Sept. 1860, in Caldwell County. His second marriage was to Mary Ann FREEMAN on 7 June 1868, same place. This may have some bearing on the lawsuit you mention. Did Eva Bean Lawson die or was there a divorce? Who knows? The 1870 census lists the following. Lawson Swanson, 36=1834 NOT 1827 which makes more sence with Eva's 1838 birth year. Mary A. Swanson, 25=1855 Laura, 9=1861 John, 7=1863 These 2 kids would have been by Eva so maybe she died during The War. Flora F, 10/12=abt 1869.Probably a child of Mary Freeman.
As I reread your post I realize I am a little confused by it. WHICH Largent's wife name are you trying to find? Randy Largent