John and Ken are located just off Sandy Boulevard.  Take Sandy to NE 70^th Avenue and turn onto 70^th, headed south.  Theirs is the first house on the right.    

Kevin is on SE Schiller Street, which runs east and west, south of Holgate Boulevard.  His house is between SE 33^rd Place and 34^th Avenue.

From Portland, take I-5 south to I-205.  Take I-205 to exit 8 and follow Rte 43 north to Elliot Street.  Turn right onto Elliot, and then zigzag with a series of one block turns to Dave’s house: left, right, left, right, left, left.  Park at the end of Dave’s dead end or on his grass, but please NOT in front of his neighbor across the street.