This is a Message Board Post that is gatewayed to this mailing list. Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/rw/pBC.2ACE/3556.2 Message Board Post: probably both are correct. The US Postal Service finds the address if you call it an AVENUE, not a STREET, and so does any map program. You can see the building at 6737 24th Ave NW, Seattle, WA 98117 using GoogleMap: http://maps.google.com/maps?f=q&hl=en&q=6737+24th+Ave+NW,+Seattle,+WA+98117&ll=47.678403,-122.387679&spn=0.000887,0.003369&t=h It looks like a business or large building. Often, "½" addresses are added-on apartments or rooms in the rear. The USPS lookup URL is http://zip4.usps.com/zip4/welcome.jsp just put in the street address and zip code Try sending a letter to "owner" at the listed address, asking if there is or was a "half" unit on the property, etc. There's a 75yo Edward B POWELL in Seatac WA, but you'll have to pay $10, it appears, for the info. Shows up after a whitepages.com search.