Źródło

• {#1} George (sic!) Wilk’s Birth Indices (MR15264). Pennsylvania Birth Indices (MR15262), Pennsylvania Historical & Museum Commission; miejsce w źródle: year 1913 letter W page 4964 (PDF page 213) line 9 indices H106.001 65M 1-70 published 03/05/71 NCCURR 400051 State File Number 062120
  odpis: 02.01.2022, https://www.phmc.pa.gov/Archives/Research-Online/Documents/1913-W.PDF