Rather than replacement, consider repair.

If you have "rim" locks (A cast iron box surface mounted on the door) or
"mortise" locks (A cast iron box set into a pocket in the edge of the door.)
these locks can be overhauled by a locksmith to be good as new.

About the only thing that kills these locks is force sufficient to break the
case iron body of the lock. Usually the problem is minor like worn spindles
or broken springs.


--

Roger Shoaf (A locksmith)

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.



wrote in message
...
Could someone help? We live in a house built in 1902 and have Rim
Locks on all of our doors. We want to replace them, since many of
them don't latch anymore. When we removed one to replace it with a
standard interior door knob, we realized that our doors are too thin!
They are about an inch wide, whereas modern doors are 1 1/4 or 1 1/2
wide. Does anyone know of a place that I can find knobs that would
fit? Or what I'd use as a keyword to search online?