As these have been mentioned recently I thought I'd post the following
Sefton Library Services
At Crosby Library
REGISTERS OF ELECTORS (Some years missing from sequences)
Bootle from 1869
Crosby 1908 -1912, and from 1936
At Southport Library
ELECTORAL REGISTERS / BURGESS ROLLS : printed
registers for Southport 1867- 1939, 1945 - date
registers for Birkdale 1913 - 1939, 1945 - date
Ed Officer