Time frame including birth year as well as city, county, and province if you have it would help narrow down to the person you are asking about.
Sydney Melville
United States Census, 1860
birth:
1852
Unknown
residence:
1860
2nd Division 14th Ward Philadelphia City, Philadelphia, Pennsylvania, United States
Sidney J Melville
Boarder
United States Census, 1940
birth:
1890
Canada
residence:
1940
Ward 3, Titusville, Titusville City, Crawford, Pennsylvania, United States
Sidney Melville
Head
United States Census, 1940
birth:
1912
Canada
residence:
1940
Ward 16, Detroit, Detroit City, Wayne, Michigan, United States
Sidney Melville
Son
United States Census, 1930
birth:
1912
Canada
residence:
1930
Detroit (Districts 0001-0250), Wayne, Michigan, United States
immigration:
1924