Add to ORKGBlack and white photograph of a desert landscape with a prominent rock outcrop. Ed Yourdon's notes: "Mystery scene. I really don't know anything about this photo -- no idea when it was taken, or where.
Black and white photograph of three people (possibly Isaac "Ike" Yourdon at right), with a truck. E...
Black and white photograph of Mabel Yourdon with several others in a natural setting, possibly durin...
Black and white photograph of a deer leaving an area where a man may have been shooing it away from ...
Black and white photograph of a mountainside with steep cliffs and a tall, narrow waterfall, possibl...
Black and white photograph of a scene with waterfalls coming off of a plateau, possibly at Thousand ...
Black and white photograph of four people on a hike in a mountainous setting. Ed Yourdon's notes: "...
Black and white photograph of tents set up in a campsite during one of the Yourdons' travels. Ed Yo...
Black and white photograph of tents set up in a campsite during one of the Yourdons' travels. Ed Yo...
Black and white photograph of tents set up in a campsite during one of the Yourdons' travels. Ed Yo...
Black and white photograph of people outside a house, possibly in southern California. Ed Yourdon's...
Black and white photograph of a landscape with a prominent bluff, possibly made of sandstone and lik...
Black and white photograph of a waterfall, possibly in Colorado. Ed Yourdon's notes: "Mystery water...
Black and white photograph of a small building and a tent, possibly an early property associated wit...
Black and white photograph of three people (possibly Isaac "Ike" Yourdon at right), with a truck. E...
Black and white photograph of Mabel Yourdon with several others in a natural setting, possibly durin...
Black and white photograph of a deer leaving an area where a man may have been shooing it away from ...
Black and white photograph of a mountainside with steep cliffs and a tall, narrow waterfall, possibl...
Black and white photograph of a scene with waterfalls coming off of a plateau, possibly at Thousand ...
Black and white photograph of four people on a hike in a mountainous setting. Ed Yourdon's notes: "...
Black and white photograph of tents set up in a campsite during one of the Yourdons' travels. Ed Yo...
Black and white photograph of tents set up in a campsite during one of the Yourdons' travels. Ed Yo...
Black and white photograph of tents set up in a campsite during one of the Yourdons' travels. Ed Yo...
Black and white photograph of people outside a house, possibly in southern California. Ed Yourdon's...
Black and white photograph of a landscape with a prominent bluff, possibly made of sandstone and lik...
Black and white photograph of a waterfall, possibly in Colorado. Ed Yourdon's notes: "Mystery water...
Black and white photograph of a small building and a tent, possibly an early property associated wit...
Black and white photograph of three people (possibly Isaac "Ike" Yourdon at right), with a truck. E...
Black and white photograph of Mabel Yourdon with several others in a natural setting, possibly durin...
Black and white photograph of a deer leaving an area where a man may have been shooing it away from ...