1940 census will be released on April 2, 2012.It will take several months to transcribe all the states.
ALA Vital Records - VITAL RECORDS include birth, death, marriage and divorce records. Alabama law did not require the recording of birth or death certificates until 1908. The statewide recording of marriage certificates began in 1936 and divorce certificates in 1950. The Alabama Department of Archives and History has indexes to those records, but original certificates must be obtained from the Alabama Center for Health Statistics.
This explains why you cannot lind a birth cert.
WHAT "specific" info abt Samuel Jr. are you seeking???
TRY - Find a grave – FREE SITE - volunteer site all states; frequently has headstone pic DO NOT SEARCH FOR A MARRIED WOMAN USING HER MAIDEN NAME.