Source:NEHGR, p. 143:330 ("The Riddlesdale Alias Loker Family of Bures Saint Mary, Suffolk, England and Sudbury, Massachusetts" by Douglas Richardson), says that Henry Loker, s/o Henry Loker and Elizabeth ---, m. Sudbury 24 Mar 1647 Hannah (---) Brewer, widow of John Brewer of Cambridge. No evidence for this identification of Hannah is provided. Presumably, it is based on age, since their daughter Hannah Brewer was born in 1642 and would have been too young to be this woman. Most sources indicate that John Brewer of Cambridge moved to Sudbury and had children after 1647 (I can't find them in the Sudbury VRs), suggesting it wasn't his widow that married Henry Loker, and ironically, one source indicates he himself remarried in 1647, suggesting his wife (Ann in most sources) actually had died by 1647. I haven't been able to confirm the conflicting data yet so leave it as is for now.