During the 2290s, as a lieutenant commander, Velasco (who was usually only called by his surname) was a security officer assigned to Shadowstar Station. (Star Trek: Shadowstar Station: "Pomp and Circumstantial Evidence")
Velasco could trace his ancestry back at least 300 years, to ancestors who fought in the Southeast Asian resistance forces against Khan Noonien Singh during the Eugenics Wars. (Star Trek: Shadowstar Station: Freedom's Just Another Word for Nothing Left to Lose)
One of Velasco's aunts was Soledad Ibañez, first commander of USS Accord, who disappeared along with her officers and crew in 2263. (Star Trek: Accord: "Year One", Star Trek: Shadowstar Station: "Soledad")
An older cousin was José Velasco, commander of USS Jayapura in the 2290s. (Star Trek: Shadowstar Station: "Avalon")
|Officers of Shadowstar Station|
|SFR-721:||Sturdevant | N. Barstow | H.H. Velasco | Rowley||N. Barstow||Lawrence||Ibernerra||unrevealed||Arismunandar | Kel-Qrex||Boone | D'Gron||H. Sastrowardoyo|
"Velasco" was the surname of the author's paternal grandfather's mother, who died shortly after giving birth to him c. 1902.