Wedding photo of CWHP and Elizabeth Walker 1840

Based on other photographs in our family ablum, I have been able to identify several of the members of this wedding party. Here is my best guess about those in this photo.

From left to right:
1st: ?
2nd: ?
3rd: Elizabeth Walker Pickering
4th: CWHP
5th: ?
6th: Emilie Steffens Pickering, wife of Peter Pickering
7th: Peter Pickering, uncle to CWHP, brother to William
8th (sitting): Caroline Amalie Friedrieke Steffens Pickering, mother to CWHP
9th (sitting): William Pickering, father to CWHP
10th (standing): CWHP sister, Valencia?
11-13th: ?