Here's the complete list of every left-handed thrower who also played games as a catcher - along with how many games they caught:
1 Jack Clements 1073 2 Sam Trott 272 3 Pop Tate 202 4 Sy Sutcliffe 186 5 Bill Harbidge 128 6 Mike Hines 99 7 John Humphries 75 8 Fred Tenney 71 9 Art Twineham 52 10 Phil Baker 50 11 Jiggs Donahue 45 12 Dave Oldfield 35 13 Charlie Householder 34 14 Fergy Malone 21 15 Jack McMahon 16 16 Charlie Krehmeyer 12 17 Joe Wall 7 18 Elmer Foster 5 T19 Benny Distefano 3 T19 Homer Hillebrand 3 T21 Mike Squires 2 T21 Jim Egan 2 T21 Dale Long 2 T24 Mule Shirley 1 T24 Charlie Eden 1 T24 Chick Shorten 1 T24 Martin Powell 1 T24 Billy Redmond 1 T24 John Mullen 1 T24 Lefty Marr 1 T24 Joe Wright 1 T24 John Cassidy 1 T24 Chris Short 1
Dale Long caught 2 games in 1958,Mike Squires caught 2 games in 1980,and Benny Distefano caught 3 games in 1989.Those are the only 3 LH throwing catchers in the last 50ish years.
I remember growing up through little league and seeing left handed catchers mitts. Has there ever been a time in MLB that there has been a left handed fielding catcher, or any other infield defensive lefties besides 1st base?