Pam Hawley Marlin
English: patronymic from the personal name Richard. This has undoubtedly also assimilated like-sounding cognates from other languages, such as Swedish Richardsson.
The Richardson Family Genealogy (1906) by Amos Richardson documents the Richardson family back to 1647 (see Richardson Family Tree). These are the ancestors of Adelaide Amanda Richardson, wife of Martin Gilbert Hawley. The genealogy includes Martin and Adelaide who are mentioned on page 46 of the 64 page document (image below) Richardson Genealogy.