Hello
Is anyone researching this family?
I've got a Caroline Douglas who lists Alanson COOK as her brother-in-law when she made her will in 1868.
I just don't know if Alanson's wife, Catherine, is her sister, or if Catherine was her late husband's sister.

Caroline d/o Margaret HAINER (per 1860 Census) wife of Simon DOUGLAS born 1806 NY, died May 1850 Chautauqua Co, NY

Thoughts?
Suggestions on where to look?
thank you
Julie