Brightwork is out of the unraced Clarendon Fancy (Malibu Moon) and a half-sister to the stakes-placed Quiet Company (Temple City). Clarendon Fancy is a full sister to the stakes-placed Cancel This and to the unraced Catch The Moon, and a half-sister to two stakes winners, Dubini (Gio Ponti), also Grade 3-placed, and What A Catch (Justin Phillip).

Second dam Catch My Fancy (Yes It's True) won two stakes races. Her daughter Catch The Moon produced Girvin (Tale of Ekati), winner of the Grade 1 Haskell Invitational Stakes and a young sire, as well as three Grade 3 winners: Midnight Bourbon (Tiznow), also placed in more than one Grade 1, Cocked And Loaded and Pirate's Punch.

Third dam Walk Away Rene (Gold Alert) won three races and bred eight winners, the best of them Catch My Fancy. Another daughter, Walkinforkisses (Kissin Kris), won four times and is the dam of the stakes winner Yes I'll Go, while the unraced Away Rene (Toolighttoquit) produced the stakes winner Smile Samantha and the stakes-placed Red Penny Princess.

Walk Away Rene is a half-sister to two Grade 1 winners who became sires, Silver Max (Badge Of Silver) and Yes It's True (Is It True).

Clarendon Fancy has a yearling filly by Volatile and a filly foal of 2023 by Yaupon.