Her maiden name was Patterson, she married Joseph Stephens, his 3rd wife,
on 16 Dec 1838 in Johnson Co., Mo. by  J.B. Bullard, J.P.
 It reads above Sarah MOTHER-FATHER
SISTER; below the verse reads No Pain No Grief No Anxious Fear Can reach
the peaceful sleeper here. 
Mary , Sarah & Joseph Stephens share the same marker.