Wiliam Arthur Cookson was born around 1880 in Salford, Lancashire.

Wiliam married Ellen Greenhough in 1900 in Salford, Lancashire.

He had the following children from his marriage to Ellen Greenhough:

- Elizabeth Cookson	born in 1901 at Salford, Lancashire.
- Elsie Cookson	born in 1903 at Salford, Lancashire.
- William Arthur Cookson	born in 1905 at Salford, Lancashire.
- Ernest Cookson	born in 1905 at Salford, Lancashire.
- John Edward Cookson	born in 1908 at Salford, Lancashire.
- Ellen Cookson	born around 1909 at Salford, Lancashire.
- James Cookson	born in 1913 at Salford, Lancashire.
- Stanley Cookson	born in 1914 at Salford, Lancashire.
- Alice Cookson	born in 1918 at Salford, Lancashire.

Wiliam was a Skilled Labourer.

Wiliam died when he was 67 years old, in 1948 in Salford, Lancashire.