Between 1893 and 1907, information on births was compiled by local tax assessors and then turned in to the county. Often a birth was recorded six months to a year after the actual event. The records do not include maiden names of mothers. Records are incomplete; not every birth was recorded. The only record that exists is the register itself; there are no certificates on file. There are a total of 23,351 births recorded in this database.
A person whose birth was not recorded or who wished to correct a birth register entry could file a delayed birth record. These records began in 1941, but cover births for the 1893-1907 period (some are earlier). Married women are indexed under both maiden and married names. There are 3719 birth records in this database.
The records in this index begin on July 1, 1852 and end in January 1855. They do not represent all of the births that took place in Chester County during this time period. There are several townships that never submitted any returns to the Register of Wills Office and a large majority only submitted a few. The closer the event took place to West Chester, the higher probability it was recorded.