Tokenized lnames are 10 characters, untokenized are 15.
birth.w.format:  format for birth.w file:
:::::::::::::::::::::::::::::::::::::::::::::::::
                         Column
		      start  length
parish                  1       1
id (rec no in birth.w)  2       6
year                    8       3
month                   11      2
day                     13      2
fname child             15      5
sex of child            20      1
fname father            21      5
lname father            26      10
fname mother            36      5
lname mother            41      10
place of birth          51      5
fname godparent         56      5
lname godparent         61      10
place of godparent      71      5
lname father            76      15
lname mother            91      15
lname godparent        106      15
rec num in *.birth.uni 121      5