The father, a male Human and the sire of Star Destroyer Captain Dorja, spent his life as a member of a navy, a career path also chosen by his father before him, as well as five preceding generations of Dorja males. Dorja's offspring came into existence no later than 65 BBY.
According to the Dark Force Rising Sourcebook, Dorja's father might have been a member of the Republic Navy, the Imperial Navy, or potentially both naval forces.