Sources

• {# 1} U. S. Social Security Death Index, RootsWeb.com, ssdi.genealogy.rootsweb.com
  
  Name     Birth     Death     Last Residence     Last Benefit     SSN     Issued
  ANTHONY W PLAZA      26 Apr 1906     05 Feb 1993     55422 (Minneapolis, Hennepin MN, MN)     (none specified)     472-05-1272     Minnesota
  where: http://ssdi.genealogy.rootsweb.com/cgi-bin/ssdi.cgi?ssn=472-05-1272
  citation:  JAN 2006, author: Maciej Róg
• {# 2} Minnesota Death Index, 1908-2002, Source Information:Ancestry.com. Minnesota Death Index, 1908-2002. [database online] Provo, Utah: MyFamily.com, 2001. Original electronic data: State of Minnesota. Minnesota Death Index, 1908-2002. Minnesota Department of Health,Minneapolis, Minnesota.
  
  Name: Anthony W. Plaza
  Birth Date: 26 Apr 1906  Death Date: 5 Feb 1993
  Death County: Hennepin
  Mother's Maiden Name: Zulkoski
• {# 3} Manifest Ellis Island: Hendrika Plaza, 3 MAR 1908
  
  statek S.S. „Kroonland”
  port odprawiający: Antwerp 22.02.1908
  port przyjmujący: New York 3.03.1908
  
  http://ellisisland.org/search/shipManifest.asp?pID=101758030303
  Line 0025, Passenger ID 101758030303: „Plaza Michael”; wiek: 37 lat; piśmienny: tak; narodowość: „Polish”; ostatnie miejsce zamieszkania: „Konorowska, Russia” (powinno być Austria lub Galicia); najbliższa osoba w kraju: „father Jendrzey Plaza Komorowska” (jego ojciec); cel podróży: „Col Rockwale” (stan Colorado); za podróż zapłacił: on sam; posiada przy sobie: 200$; czy byli wcześniej w USA: „yes 1900 Pa+Colo” (byli już w 1900 r. w stanach Pennsylvania i Colorado - por. miejsce urodzenia dzieci); najbliższa osoba w USA: „brother Jan Plaza, Rockwale Col” (rzeczywiście, wymienieni jako sąsiedzi w cenzusie 1910); miejsce urodzenia: „Russia, Konorowska”.
  
  http://ellisisland.org/search/shipManifest.asp?pID=101758030304
  Line 0026, Passenger ID 101758030304: „Plaza Hendrika” (żona); wiek: 27 lat (w wersji wekstowej woluntariusz EllisIsland źle odczytał „21”).
  
  http://ellisisland.org/search/shipManifest.asp?pID=101758030305
  Line 0027, Passenger ID 101758030305: „Plaza Franciska” (córka); wiek: 4 lata (naprawdę miała niecałe 6 lat); niepiśmienna; narodowość: „U.S. Born” (miała obywatelstwo amerykańskie z faktu urodzenia w USA); miejsce urodzenia: „USA Wilkesbarre”.
  
  http://ellisisland.org/search/shipManifest.asp?pID=101758030306
  Line 0028, Passenger ID 101758030306: „Plaza Johan” (syn); wiek: 3 lata; narodowość: „U.S. Born”; miejsce urodzenia: „USA Rockvale”
  
  http://ellisisland.org/search/shipManifest.asp?pID=101758030307
  Line 0029, Passenger ID 101758030307: „Plaza Antoni” (syn); wiek: 1 rok; narodowość: „U.S. Born”; miejsce urodzenia: „USA Rockvale”
  repository: The Statue of Liberty – Ellis Island Foundation, Inc., where: S.S. Kroonland, departed from Antwerp, arrived 3.03.1908, page #0210
• {# 4} US Census 1910: Mike, John Plaza, 23 APR 1910
  
  Thirteenth Census of the United States: 1910 - population
  
  State: Colorado
  County: Fremont
  Township or other division of county: Precinct 25 Rockvale
  23rd of April, 1910
  Supervisor's District No 3
  Enumeration District No 79
  Sheet 7 (…?)
  
  line 51, dwelling 143
  
  Plaza Mike, head, male, 37 (27?) years old, married, 10 members of family, place of birth: "Austr. Polish", father's place of birth Austria-Polish, mother's place of birth: Austria-Polish, immigrated in 1900, alien (has NOT been naturalised), speaks English, coal miner, no school
  
  Plaza Henrietta, wife, female, 28 years old, 10 members of family, 5 younger children(?), place of birth Austria-Polish, father's place of birth Austria-Polish, mother's place of birth: Austria-Polish, immigrated in 1900, speaks English, is able to read and write
  
  Plaza Francis, daughter, female, 8 years old, born in Pensylvania, father born in Austria-Polish, mother born in Austria-Polish, (able to do sth specified in column 25)
  
  Plaza John, son, male, 6 years old, born in Colorado, father born in Austria-Polish, mother born in Austria-Polish
  
  Plaza Tony, son, male, 4 years old, born in Colorado, father born in Austria-Polish, mother born in Austria-Polish
  
  Plaza Peter, son, male, 2 years old, born in Colorado, father born in Austria-Polish, mother born in Austria-Polish
  
  Anni(?), daughter, female, 1 month old ("1/12"), born in Colorado, father born in Austria-Polish, mother born in Austria-Polish
  
  Kopacz Joseph, brother in law, age 27 (or 22?), born in Austria-Polish, father born in Austria-Polish, mother born in Austria-Polish, immigrated in 1907, alien, speaks Polish, coal miner, able to read and write
  
  line 59, dwelling 144
  
  Plaza John, head, m., 30y, AUST-POL, immigrated 1910 (191…?), speaks English, coal miner, able to read adn write
  
  Plaza Annie, wife, f., 28y, AUST-POL, imm. 1902, speaks Polish, can't read
  
  Plaza Mary, daughter, f., 6y, born Pensylvania
  
  Plaza Mike, son, m., 4y, born Colorado
  
  Plaza Frank, son, m., 2y, born in Colorado
  
  Kopacz John, brother in law, m., 40y, AUST-POL, imm. 1907, alien, speaks Polish, coal miner, able to read and write
  citation: Maciej Róg
• {# 5} US Census 1920: Mike Plaza, 5 FEB 1920
  
  Plaza Antone, 13 years old, born in Colorado

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