Details of ??????'s birth are not known.

?????? married Louisa A. ??????

Details of ??????'s marriage are not known.

He had the following children from his marriage to Louisa A. ??????:

- Percy Alcock	born around 1897 at Wingrave, Buckinghamshire.
- Florence Alcock	born around 1899 at Wingrave, Buckinghamshire.
- John Alcock	born around 1901 at Bidding, Bedfordshire.

Details of ??????'s occupation are not known.