I think I have read in the past that it might be to note that a child has died but that can’t be the case here and there are several.
I wonder if, on most anyway, it is a note to show they haven’t paid for the baptism. It looks as though lots have paid 2s 6d. The trouble is some who have paid, have a cross.
Then I thought that they were the females - but then that was disproved.
There is probably a simple explanation
