Hello paslondon,
wonder if this help you ?.
Birth
March Quarter 1877 Milton Kent
Sydney Philip Smythe
ref Vol 2a Page 845
However on family search Baptism is recorded
Baptised 14 January 1877 Munston Kent
Sydney Philip Smythe
Parents Benjamin and Mary Ann Smith
1881 Census
109 East Street
Sittingbourne
Milton
Kent
Benjamin Smith age 40 b.1841 Wells Norfolk Occupation Mariner
Mary Ann Smith Wife age 32 b.1849 Murston Kent
Florence Smith Daughter age 11 b.1870 Sittingbourne Kent
Arthur Smith Son age 10 b.1871 Sittingbourne
Ada Smith Daughter age 8 b.1873 Sittingbourne
Edith Smith Daughter age 6 b.1875 Sittingbourne
*Sidney Smith Son age 4 b.1877 Sittingbourne Kent
Percy Smith Son age 2 b.1879 Sittingbourne
Marriage
Dec Quarter 1868 Dartford Kent
Benjamin Smith & Mary Ann Cardnell
Ref Vol 2a Page 590
Regards.
Maureen.