These abbreviations have been used during the 20th Century in Electoral Registers
From “The Family Tree Detective” by Colin D. Rogers
§ Not entitled to vote in local (later metropolitan borough, urban district, or parish) elections.
† Not entitled to vote in county council elections
‡ Not entitled to vote in rural district elections
date given Entitled to vote from that date
a Absent voter
BP !Bw) Business premises qualification (women)
D (Dw) Spouse's occupation qualification
E not entitled to vote in local or parliamentary elections
F Not entitled to vote in local elections
G Citizen of Europe, entitled to vote in local elections only
HO Husband's occupational qualification
J Juror
JS Special juror (as defined by the Juries Act 1870 ss. 6 and 11 - esquire or above, bankers,
merchants, and anyone owning property of more than a certain value)
K Citizen of Europe, entitled to vote in local and European elections only
L Not entitled to vote in parliamentary elections
M Merchant seaman
N To be included in the next register as a voter
NM Naval or military voter
O (Ow) Occupational qualification (women)
R (Rw) Residential qualification (women)
S Service voter
U Citizen of Europe, entitled to vote in European elections only
x Not entitled to vote in parliamentary elections
Y Entitled to vote in the following year
Stan