Gundolpho Bolger		Alfrida of the Yale
Gundahar Bolger	Rudolph Bolger	Gundahad Bolger
		Gundabald Bolger

The earliest known member of the Bolger family to be mentioned in records is the patriarch Gundolpho Bolger. Gundolpho and his wife Alfrida had three sons, of whom Gundahad was the third and youngest. Gundahad was born in the Shire-year 1180 (or III 2780), making him approximately contemporary with the Old Took Gerontius, who would be born ten years later.

Gundahad's elder brother Gundahar inherited the headship of the Bolger family and left many important descendants (including Frodo Baggins, who was his great-great-grandson). Gundahad, meanwhile, left much less of an impression on history. We know little about him beyond his date of birth, and the fact that he had at least one son, named Gundabald. Nonetheless, through Gundabald, Gundahad's branch of the Bolger family survived through the generations to at least the end of the Third Age, and his great-great-grandchildren Wilimar, Heribald and Nora (born between III 2947 and III 2960) were approximate contemporaries of Frodo Baggins.