These are the naturalization documents for Albert Rosenthal [Harold's father].
Photocopies received by mail from Minnesota Historical Society, October 2014.
Here's a copy of the index record, copied from ancestry.ca
Minnesota Naturalization Records Index, 1854-1957 about Albert Isak (Mrs. Naomi) Rosenthal
Name: Albert Isak (Mrs. Naomi) Rosenthal
The PDF file contains four documents:
declaration of intention, 1909
declaration of intention, 1923
petition for naturalization, 1928
granting of naturalization, 1928
These documents gave us two important pieces of new information:
that Albert was from Przasnysz, Poland. (The 1909 document says Prasnish, Russia and the 1923 document says Prashnish, Poland)
that Albert arrived in New York on the steamship "Patricia," from Hamburg, in November or December 1902. This made it possible to find the shipping/immigration documents for Albert and his family!
Presumably, having filled in a declaration of intention in 1909, Albert did not petition for naturalization before it had expired? which would explain why in 1923 he submitted another declaration of intention; five years later, he petitioned for naturalization.
In the 1909 document, Albert affirms he has no allegiance to the Russian czar (Nicholas), and in the 1923 one he affirms he has no allegiance to the Republic of Poland.
He also had to declare he was not an anarchist or a bigamist.
In the 1909 document Albert gives his date of birth as July 30, 1890 and in the 1923 and 1928 documents as September 15, 1890. (Meanwhile, on his 1917 draft registration card he gives it as Aug. 15, 1890.) Many immigrants in that era were not sure of their own date of birth.
In the 1909 declaration, Albert is 18 years old, living at 388 Woodward Ave. in Saint Paul, Minnesota. See this address today in Google Maps.
In the 1923 declaration, Albert is 33 years old, living at 99 N. Milton St. in Saint Paul, Minnesota (? I am not sure about the "N.") See this address today in Google Maps.
In the 1928 petition he is living in Saint Paul but it's hard to read the address.
In all these documents, Albert gives his middle name as Isak (rather than Jack).
Albert gives details of his immigration: that the ship was called the Patricia, that it arrived in 1902 from Hamburg (in the 1909 document he says it arrived Nov. 10 and in the 1923 document he says it arrived Dec. 5). The closest arrival date of the Patricia, according to the Ellis Island website, was Dec. 15, 1902.
The 1928 petition gives Naomi's birth date as Aug. 30, 1890; it gives the children's births as:
Harold, 3 Dec. 1913, Poland
Irving, 5 Sept. 1919, Brooklyn
Sander, 3 Aug. 1923, St. Paul
The 1928 petition also gives Albert's and Naomi's date of marriage as Sept. 10, 1912.
It appears the declarations of intent were filled out by a clerk -- in the photocopy of the 1909 declaration, you can see part of the previous page (another immigrant's declaration) which has the same handwriting as Albert's declaration.
In the 1928 petition for naturalization, one of the witnesses is Harry Rosenthal, Merchant, of 1943 Fairmont Ave. He was Albert's nephew (Leah's son).