I had a Pope and a Ogden reel push mower and got a catcher at a tip shop for $5. for the Pope but was thinking it wouldn't be that difficult to change the brackets on the Pope catcher to make it fit the Ogden,
Pope and Ogden push mowers aren't worth much ,I couldn't get $20. for the 2 mowers with a catcher, if you look around you will eventually find a cheap catcher as the high priced mowers never sell.
Not sure if anyone here has a Ogden catcher to get the measurements, you could try a Facebook mower group if need be.
I've seen these push reel mowers not sell for $20. at a garage sale and they just throw them out with the rubbish.