Civil Registration Indexes (Births)
Probably:

Daniel Leslie, reg. 2nd quarter of 1870, Guisborough, Yorkshire North Riding, England.
David Leslie, reg. 3rd quarter of 1873, Clitheroe, Lancashire, England.
David Leslie, reg. 4th quarter of 1873, Marylebone, London, England.
Donald Leslie, reg. 3rd quarter of 1880, Leeds, Yorkshire West Riding, England.
David Leslie, reg. 1st quarter of 1882, East Ward, Westmorland, England.
Daisy Leslie, reg. 1st quarter of 1887, Chelsea, London, England.
Douglas Leslie, reg. 2nd quarter of 1888, Birkenhead, Cheshire, England.
Doris Leslie, reg. 3rd quarter of 1889, Woolwich, London, England.