W'hen you are a Barbershopper, you know you are part of a familiy. DURF likes to take it to the extreme.
Dave, who sings Bass, is Father to Shad, who sings Baritone; whose son is Andrew, who sings Tenor; whose uncle is Jon, who sings lead; who is also the son to Dave and brother to Shad.
Now for how we got the quartet name, DURF. As you can see we are all related, and as it happens have the same last name, Durfee. Hence the name, DURF.