Kelly’s Directory of Manchester, Salford and Suburbs (1929) lists the following:
Fletcher, Mrs. Frieda, 23 Caroline Street, Lower Broughton
Portman Reuben, tailor, 13 Suffolk Street, Lower Broughton
Portner, Hyman, tailor, (Olinsky & Portner) 7 Dantzic Street
Compare the addresses in bold with those on the marriage record. I think we can conclude that Betsy's father was officially known as Reuben Portner.
Joseph was staying with his friend at the time of his wedding.
London directories for the years 1921 and 1934 list 'H. Cohen, furrier' at two different addresses.