b. – born
B – black, Negro
bapt. – baptized
BAR – Brigade of the American Revolution
BARE – Benefit Association of Railway Employees
BC – (of a date) before Christ
BCG – Board for Certification of Genealogists
BCR – Battle Casualty Report
bef. – before
BG – burial grounds
b-i-l – brother in law
BK – Brother’s Keeper (software)
BNL – Brotherhood of the New Life
BPOE – Benevolent and Protective Order of Elks
bro. – brother
bur. – buried