Didn't find and "McMahon" marriages in Washington County, Ohio. But did find "McMahan" which is listed below. Marriage Index: Selected Counties of Ohio, 1789-1850 McMahan, Abraham Married: Apr 15, 1841 in: Washington Co., OH Spouse: EDWARDS, SUSAN Gender: M More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. McMahan, Elizabeth Married: Apr 04, 1844 in: Washington Co., OH Spouse: ROBERTS, WILLIAM Gender: F More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. McMahan, Sarah Married: July 04, 1850 in: Washington Co., OH Spouse: WILSON, GEORGE Gender: F More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Goodwin, Asa Married: Aug 13, 1810 in: Washington Co., OH Spouse: WILLIAMS, HANNAH Gender: M More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Goodwin, Benjamin Married: Apr 22, 1841 in: Washington Co., OH Spouse: CONKRIGHT, SARAH Gender: M More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Goodwin, Margaret Married: Dec 22, 1818 in: Washington Co., OH Spouse: CARL, WILLIAM Gender: F More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Goodwin, Polly Married: Apr 18, 1847 in: Washington Co., OH Spouse: FLOWERS, SILAS Gender: F More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Goodwin, Sarah Married: Aug 03, 1806 in: Washington Co., OH Spouse: GILMAN, NATHANIEL C. Gender: F More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Goodwin, Sarah Married: May 13, 1819 in: Washington Co., OH Spouse: HEARD, JOSIAH Gender: F More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Goodwin, Sarah E. Married: May 05, 1835 in: Washington Co., OH Spouse: CHERRY, PALMER Gender: F More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Goodwin, Thomas Married: Oct 15, 1840 in: Washington Co., OH Spouse: RIEDER, BETSY Gender: M More: Family History Library, Salt Lake City, UT, Film #s 0946205 & 0941958. Debbie (Noland) Nitsche Diamonddeb@comcast.net WASHINGTON COUNTY, OHIO HISTORICAL & GENEALOGY "LINKS" http://hometown.aol.com/washcohistory/Intropage1.html