How helpful, thank youDate: 3/12/2007 1:03:02 AM
Author: xapora
This is what I found:
Properly, ''junior'' is written out. Abbreviating ''junior'' to ''Jr.'' is less formal but still acceptable. When written out, a lowercase j is used. When abbreviated, the J is capitalized. The abbreviation is commonly used when the groom has an exceptionally long name. A comma always precedes ''junior,'' whether written out or abbreviated.
Hope that helps.