Which Sarah married Joseph W. Lang (b. 1844 GA)

James Tarrant,45, B.GA, Caron, 38 b. GA, Marcus J., 18 b. GA, Nancy J. 17, b. AL, Sarah E. 15, b. AL, Mary F. 13, b. AL, Sanford W. 6, b. AL, Wiliam J. 3, b. AL. This family is found in the 1860 US Census Marshall County, AL. Eastern Division, Post Office is Mount High.
Robert Lang b. GA 1812 and Malinda Ingram Lang b. 1813 S.C. (and 11 children) were also living in Marshall County, Al, in 1860, but the post office is Guntersville. I believe their son Joseph W. Lang b. GA 1844 married Sarah E. Tarrant on Nov. 9, 1865 in Marshall County, AL. Joseph and Sarah are my gggrandparents. They remained in Marshall County and raised their family. The uncertainty is this, I dont know for sure that Sarah TARRANT is the Sarah that Joseph married. I have heard Sarah Conner (which I think is the wife of Joseph Lang, (uncle to MY Joseph W.) who is brother to Robert Lang, Joseph W's father. ANYBODY OUT THERE KNOW ANYTHING? I hope this isnt too confusing. Thanks in advance for any info! Jaye Gross