Historian Keith Lockhart has a seemingly inexhaustible amount of photos, postcards and photo-based illustrations from days gone by in Delaware County, and he’s trying to keep the best records that he can, and that’s where you come in.

This week it’s a postcard from about 1920 of Cherry Street in Collingdale. Keith is looking for an exact location in terms of blocks and cross streets and an orientation of the photo. There’s not a vehicle in sight.

Think you know something? Keith’s email is keith106@rcn.com. Check out more from Keith at delawarecountyhistory.com .

Here’s what you had to say about last week’s photo from Marcus Hook :

• “The photograph shows the intersection of 10th Street and Market Street in Marcus Hook. The view is looking East towards Post Road and Chester. The d

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