[Wallace T.]

Didn’t the Catholic Church (and possibly the Eastern Orthodox churches and many Protestant denominations as well) require that children be baptized with the name of a saint or an Old Testament prophet or king like David or Solomon? If that was not the case, cultural norms certainly dictated the names of children at one time. Unfortunately, those norms are gone.

[Secret Agent Man]

Those are middle names, not first names. Middle names (one or two) were used for the saint’s name if the church you belonged to had a rule or tradition like that.