The Susan Arnold that married Nathaniel Merritt in Kent County is my first cousin 5 generations removed. She is the grandaughter of Friedrich Arnholdt and Martha Schauer who arrived in Philadelphia 1 Nov 1763 from Rotterdam. It is believed they came from a part of Germany near the Netherlands. They do not count as Loyalists since he was a pacifist but it was because of the Revolution that he moved first to Detroit and then across the river to Canada.
If interested I can supply a Gedcom with 2,353 descendants of Friedrich and Martha, 3,653 if you count spouses.
Of their children:
James b abt 1838 m Semira Ann Shaw, I record 68 Descendants
John b 1839 m Jane Allon Johnston, I record 0 descendants
Mathilda Ann b 1841, m John Henry Blackburn, 15 descendants
William no marriage recorded
Alonzo no marriage recorded
Thomas 1846, m Elizabeth French, 11 descendants recorded.
Sudbury, Ontario, Canada