Robbie Byrne (Earth-1: Pre-Crisis)

Robbie Byrne was the cousin of Orlin Dwyer.

Relationship with Orlin Dwyer
On May 22, 2017, Robbie Byrne allowed his cousin, Orlin Dwyer, and first cousin once removed, Grace Gibbons, to move into his old home, provided they could renovate it.

Trivia

 * Robbie's last name may be a reference to John Byrne.