Thanks everyone. I found the marriage cert. but it's a scan of a photocopy and unreadable, except I think I can make out Road not Street. I checked the grandparent Johnson who lived at Mount Place on the Hessle Road. Some detective work puts this behind the present day Criterion Hotel in what was a forest of back-to-backs cleared in 1937 I believe. Midway between this house and his place of work in Neptune Street is the Primitive Methodist chapel at 161 Hessle Road, so I guess this is it. No idea where Hawle Street came from so sincere apologies for your wasted efforts. William Johnson was a small-time metal basher, a tinner originally, who had a factory at Neptune Street (William Johnson & Co.). Eventually two sons joined him in the same trade and he moved houses a couple of times, slowly clawing his way up. William ended at Withernsea making ships ventilation cowls and tanks. He left the company to his sons when he died in 1927, along with the equivalent today of £200k to his daughters so he had obviously done well. They changed to manufacturing car radiators. I believe the present Johnsons Sheet Metal on Madeley Street under the A63 flyover is a descendant as in 1935 it incorporated as Johnsons Motor Radiators (Hull) Ltd. This info thanks to various links some of you provided so your work has not been wasted. Thanks!