[4][5] Corrective surgery went awry and led to hemorrhaging in his leg, and doctors feared amputation would be necessary, but Gilbert recovered.

[6] After finishing his junior career with the Guelph Royals, Gilbert joined the Rangers near the end of the 1960–61 NHL season.

[8] At the beginning of the 1977–78 NHL season, Gilbert and Rangers' General Manager John Ferguson got into a contract dispute.

[11] He subsequently worked for Fundamental Brokers on Wall Street, assisting the company in opening a branch in his hometown of Montreal.

There, he acted as director of special projects and community relations representative, as well as president of its alumni association.

[11] From 2017 onward, he made upward of 30 appearances a year on behalf of the Garden of Dreams Foundation, an outreach program that works with children in the community.

[2] Gilbert married Judith Christy in 1991, in a ceremony conducted by New York mayor David Dinkins.