I'm searching for any info. on my grandfather, Harry Hollihan, who emigrated from Ireland to Pennsylvania. His date of birth was 1878-80. He was listed in Allegheny County in a 1900 census, and Washington County, PA in a 1930 census. By 1930, he had married my grandmother, Ella Tuning, and had my father, Charles. Harry worked as a glass grinder in a factory in Washngton, PA. I'm looking for his place of birth, names of parents, and if they emigrated with him, possible siblings, etc.