I am trying to figure out if John Moore Picton (b. 1860) is in fact the son of Charles T. Picton (1832-1897)and ?brother of David Means Picton. John Moore Picton is the father of Eliza "Lida" Means Picton (1887-1956) who is my great-grandmother, and I am trying to figure out if she is in fact a descendant of the Pictons of Trelach and Whitechurch.

Any help is much appreciated!!