This is a database of researchers in Japan. Very handy for finding readings, addresses and scholarly activity. Voluntary registration, so not everyone is listed.
Recommended Print Dictionaries
Call Number: UM East Asian Reference ; PL726.55 .N477 1994
Call Number: UM East Asian Reference ; CT1832 .K66 1994
Japanese Names: A Comprehensive Index by Characters and Readings
Call Number: UM East Asian Reference ; PL683 .O5
Use with caution. This dictionary is very helpful for figuring out how a name might be pronounced, but then you will need to check the actual pronunciation for that particular person in a different source.