Born in Hunterdon County, New Jersey, Brewer attended the Lawrenceville schools and Trenton Academy, and graduated from the Delaware Literary Institution, Franklin, New York, in 1862.
Brewer was born in Hunterdon County, New Jersey. Brewer attended the Lawrenceville schools. Brewer attended Trenton Academy. Brewer graduated from the Delaware Literary Institution in 1862. Franklin, New York was the Delaware Literary Institution.