if birth, _ := node.Birth(); birth != nil && birth.DateRange().IsValid() {
        dateParts = append(dateParts, fmt.Sprintf("b. %s", birth.String()))
    } else if baptism, _ := node.Baptism(); baptism != nil && baptism.DateRange().IsValid() {
        dateParts = append(dateParts, fmt.Sprintf("bap. %s", baptism.String()))
    }