There are enough details given to track the route by using google map. If you take their last sighting heading home to be at the corner of Devin and Drumm, they would have continued on down Drumm, taken a left onto McComas Ave, then gone past the nursing home to a right onto the wooded path off of McComas. The path connected McComas and Jennings. New housing fills up some of the area beyond the nursing home and possibly obscures some or most of the path. After getting onto Jennings (assuming they made it that far), they would have turned right and headed home.
I could be way off but my educated guess is that the path cut in around the 2900 block of Jennings.
I grew up in this area until the age of 8 and moved away in 1972. Like many others on this board, the event still had extreme impact on me (and still does). (I went to the same elementary school and in the same grade as Kate.) However, I was never allowed that far afield so I never walked the path to the plaza. The place is amazingly not that much changed aside from the addition of some infill housing (Devin Court and McComas beyond the nursing home).
I believe the secret of what happened to them lies in the route described above. Something involving either the density of the housing or the woods or a combination thereof...
I also wonder about the nursing home. It is now appearing the questioning methods were different back then i.e. they are asking the public for information about security guards at the plaza this week when you would assume there would be paperwork on that. Was the nursing home thoroughly investigated? Were all workers--permanent and temps---questioned and backgrounds checked out? Also, was there an incinerator in the nursing home at that time?
I have studied 1975 maps, and have personally walked and driven the known roads which were on the route normally traveled by Sheila and Kate. The roads today are the same as they were in 1975, and most of the houses along that route today were there in 1975.
The path through the woods, of course, is not depicted on any map. I believe that it must have started (the return route) near the corner of Drumm and McComas and came out by one of the yards on Jennings. Because it was a "shortcut", I would guess that it was pretty much a straight line and that the Jennings Road end of it was pretty near the Lyon House.
I say this because if it meandered much or viered wide, walking it would not have saved much time - compared with walking along the roads and sidewalks. Drumm Ave. extends as a straight line to Plyers Mill Road and from there it is only a short block to the Lyon house. Note, that Drumm has a part between McComas and Plyers Mill where you can only walk and NOT drive. It was like that in 1975 as well.
One article that I copied to this board from the Washington Star mentioned the names of three families whose property bordered the wooded area and it stated that the path passed close to those properties. Unfortunately, I do not know the current house addresses of those properties.
Here is what the article said about the path and roads in the route:
Quote: ... Sheila and Kate Lyon walked out the front door of their home together, down the flagstone path, out the chain link gate, around the corner to Jennings Road and down Jennings to a wooded path on the left.
This is the route the girls customarily use to the plaza, their mother said, and the one she often has walked herself.
It is a 15 minute stroll that took the two sisters beyond a series of red brick houses, past the brick home of Fred Sigmon, a retired federal employee, and his wife, who have lived there 16 years, past the home where Don Anderson, 18, an Einstein high school student lives with his parents, brother and puppy, and through a wooded area the size of two city blocks.
The wooded path brought them out to a clearing behind the white two-story house of Mrs. Mary Tolker, mother of four, and a former principal of Potomac Elementary School. But Mrs. Tolker wasn't out gardening in her backyard the day the Lyon girls walked to the plaza. She had a dentist appointment at 11 a.m.
The clearing near Mrs. Tolker's garden opens onto McComas Avenue where the Kensington Gardens Nursing Home sits on the right. The route to Wheaton Plaza continues across McComas, up Drumm Avenue to Faulkner and on top of that street looms Montgomery Ward's and Wheaton Plaza Shopping Center....Unquote.
From: News Reports, Articles, and Links on the Lyon Sisters Case - Page 2
LINK:
http://www.websleuths.com/forums/showthread.php?t=45866&page=2
I do not know any specifics regarding who worked at the Nursing Home, or how thoroughly folks there were questioned by police. I do know that the pond which is between the nursing home and the intersection of McComas and Drumm was searched by divers. So there was some serious attention given to the area and the grounds of that property.