Well, his father averaged 11 goals a season for the Bruins, scoring 77 of his 128 in those years. Of course that means he only scored 51 in his 13 years with the Whalers/Canes...
Worth noting for historical purposes that Glen spent a lot of his time with the Bruins as Bourque's partner both at even strength and on the power play. Playing second fiddle to perhaps the best power play point man of his generation DOES lead to more scoring chances than when you're stuck with the schlubs Carolina gave him for partners over the years.