Anyone have info on any of the following (**) relatives of my lineage ...

Alexander Birrell (Born 1760, Glasgow) **
Married Agnes Richardsen (Born 1764, Glasgow)
Child - William Birrell (Born 1792, Old Monkland) **

William Birrell (Born 1792, Old Monkland)
Married Helen (Roy) Craig (Born 1795, Old Monkland)
Children:
William Birrell (Born 1818)
Henry Birrell (Born 1822)
Christina Birrell (Born 1824)
Robert Birrell (Born 1827)
John Walker Birrell (Born 1829, Old Monkland) **

John Walker Birrell (Born 1829, Old Monkland) **
Married Isabella Roy (Born 1829, Burnbank, Scotland)
Children:
William Birrell (1852)
Pam Birrell (1854)
Robert Birrell (1856)
James Birrell (1859)
Gavin Birrell (1861)
Helen Birrell (1864)
Isabella Roy Birrell (1866)
John W. Birrell (1869)
Henry Walker Birrell (1871, Old Monkland) **
Janet Birrell (1873)

Henry Walker Birrell (Born 1871, Old Monkland) **
Married Catherine Roy Baird (Born 1871, Wishaw, Sctlnd)
Children:
Agnes Roy Birrell (1894)
John Walker Birrell (1897)
William Baird Birrell (1901)
Henry Walker Birrell (1903, Bellshill, Scotland) **
Alexander Baird Birrell (1909)
Isabella Baird Birrell (1912)

Henry Walker Birrell (Born 1903, Bellshill, Scotland) **
Married Alice Vivian Gates (Born 1908, Steubenville, Ohio)

Thank you for your help ... I'm new at this.