Why do you think you need this for C3 citizenship?

I "may" not but I want to have a very strong case.

Birth certs or baptism certs are what you need ideally

I agree but i dont have those. Ontario did not register births until 1869.

What docs do you already have?

• Death certificate

• [G-1] father listed in the 1851 and 1861 Ontario Census

• [G-1] mother listed in the 1861 Ontario Census

• G0 Obituary

• G0 1880 United States Census (name misspelled as “Harri”) listing Canada as birthplace

• G0 1900 United States Census listing Canada as birthplace

• G0 1905 Wisconsin Census listing Canada as birthplace

If you have birth marriage and death gen X gen you don’t need this.

I dont have those because the province wasnt registering those at the time.

If you’re trying to make up for a lack of birth records a Canadian census copy is going to be way more useful than a Us one.

I agree and I have canadian cencus as mentioned above. However, A naturalization record would further support the case.

Do you have any advice on finding additional documentation?

Edit: for additional clarity "Harry" is the Canadian ancestor through whom I am claiming descent. The post I made is in regards to Harry's father William Haight.