Eleanora Bradshaw.
Callsign: Thelma.
Age: 27
Family: Bradley Bradshaw: older brother. Carole and Goose: Parents.

Eleanora was born nine months after Goose died, Carole having been pregnant unknowingly when he died.
She lived in Texas with him for six years, and husband before amicably divorcing for no other reason than different paths in life.

Despite her brother's dislike towards their godfather, Nora doesn't share that dislike, which causes friction between the two siblings.
It doesn't help when she falls for the cocky blonde aviator called Jake.

Sydney Mitchell.
Callsign: Louise.
Age: 27
Family: Charlotte Blackwood: mom. Pete Mitchell: dad.

Sydney lived with her mom, Charlie, for a while in New York before being surrendered to her father's company in Miramar when she was two.
Joining her best friend, Nora, on her path through the navy, Syd became her non-negotiable RIO/WSO. Aside from when Nora moved to Texas with her husband. Syd stayed in Miramar, becoming a WSO for somebody called Phoenix until Nora moved back home a few years later.

Syd made no effort to hide her feelings for Rooster to Nora, who was against the idea of them dating. Especially when Nora and Rooster come to physical blows over their godfather in the common room the very first morning.