I had a look online, but have drawn a blank. But I agree with Jamison, someone asked on that site if anyone had league tables, and some were provided by site visitors there, so if you ask there for the results of the seasons you are interested someone reading there may be able to help. www.nonleaguematters.co.uk/forums/index.php
Maybe the players from the teams may have kept results? Maybe the Hobbins family may have details?
As I found out when asking about why the 1989-90 season had been so remarkably successful, it can be tricky retracing club history, so good luck in your search!