User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue announced/@comment-5019018-20140807031511/@comment-1153722-20140808115104

Haytham and Jenny killed Birch on 9 October 1757, Jim Holden died on 27 or 28 January 1758. After they buried Holden, Haytham returned to the colonies. There's are big gaps from September 1755 to September 1757, and from February 1758 to January 1774.