I got a response on this question from a wonderful person named Linda! She did a search and found the following: THERE WAS A STATISTICAL STUDY DONE IN 1923 ON COAL MINERS LISTED IN THE 1920 CENSUS. THE CODES USED WERE: MH-COAL MINERS WHO WERE ALSO THE HEADS OF THEIR HOUSEHOLDS BD-COAL MINERS WHO WERE BOARDERS IN A HOUSEHOLD BWF-COAL MINERS WHO LIVED IN THEIR PARENTS HOUSEHOLD (I THOUGHT THEY WERE BUF)\ USC-COLORED COAL MINERS WHO WERE BORN IN THE USA USW-WHITE COAL MINERS WHO WERE BORN IN THE USA In a message dated 12/29/2006 4:22:38 P.M. Eastern Standard Time, Vcah@cs.com writes: I have never seen these abbreviations but wonder if they mean his brother, uncle & father were immigrants but he was born in the United States. However, I can't figure out what the D means in B D. In a message dated 12/27/2006 3:14:52 PM Central Standard Time, Nannie1331@aol.com writes: > > Ok, on the 1920 census, I have a male son listed age 17, under Immigration > it has the letters B U F together, states he was born in PA does anyone > know > what this means. Also other listings for young men have Immigration as B D > any suggestions out there!! > > ------------------------------- To unsubscribe from the list, please send an email to PALUZERN-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message