William's parents were:
Richard Douthwaite, b. Staveley 1824 and poss. death in Lancaster 1897 (aged 68?)
and
Agnes Scambler, b. Ale (Lancashire) 1834 - d. Clifton 1919 (aged 86?)
they got married in JUN 1865 at Kendal district.
William's older siblings:
Emma Douthwaite, b. Casterton 1866 - d. Lonsdale 1916 (aged 50)
and
Harry Douthwaite, b. Casterton 1868 - d. ?
William's younger siblings:
Thomas Douthwaite, b. Priest Hutton 1873 - d. ?
and
Richard Scambler Douthwaite, b. Priest Hutton - d. Darlington 1916 (aged 40)
(married to Mahala Cape in 1904)