According to Ross County Marriage Records David Alexander married Elizabeth Cunningham 8 August 1816 . Info in Volume GB page 235. This license was probably just a slip of paper as at that time no official documents were used.According to 1820 Ross County census there was a David Alexander family living in Union Township. THe male between 26 to 45, the female 16 to 26 and 1 male and 1 female to age 10. This was only Alexander family in the Census.