Extended relatives

Met 3 more distant cousins last night at dinner: Steve, Kenneth & Raymond..who all go to university in Canada currently. I don't have that many first cousins since my parents don't have that many siblings; however, when I start going up and over the family tree, it gets complicated. My grandparents each have so many siblings, up in the teens somewhere, due to my great grandparents being of the generation where it was common for a man to have multiple wives and concubines. For example, the cousins I met last night are related to me in this manner: their mother is the daughter of a man who is the older brother of my ma-ma (grandmother on father's side)--but he has a different mother, same father.