OK, here is a quickie I wrote this morning. A quick way to locate names for historical import.
http://www.planetootp.com/AUNames/default.htm
Install it and run it. Located your Lahman database and hit START.
Give it a second and it will load in all of the player names and their Lahman ID. Minimize the program and then launch OOTP.
Now when you want to import a historical player, you can ALT TAB to my program and locate what his Lahman database ID is to make importing easier. NOTE: You can click in the name list on my program and hit a letter, like S and it will take you to the names that start with S.