The statement of some writers that he was the illegitimate child of William Oliver (1659–1716) may be dismissed from consideration (according to the ODNB article). The ODNB article on the other William Oliver is by Courtney, W. P.; Glaser, S. (reviewer) (2004). "Oliver, William (bap. 1658, died 1716)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/20735. (Subscription or UK public library membership required.). It makes no reference to this suggestion.
The statement of some writers that he was the illegitimate child of William Oliver (1659–1716) may be dismissed from consideration (according to the ODNB article). The ODNB article on the other William Oliver is by Courtney, W. P.; Glaser, S. (reviewer) (2004). "Oliver, William (bap. 1658, died 1716)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/20735. (Subscription or UK public library membership required.). It makes no reference to this suggestion.