Hi All,
Could anyone please help me with the following family:

John William SINCLAIR b1858 Latheron married Annie HENDRY b1859 Halkirk, married 1879 Watten.
They had a daughter Helen SINCLAIR born sometime between 1883 and 1890. Helen married Benjamin HENDERSON in 1918 in Bower and then married David BREMNER in 1922 in Thurso.
However Helen also had several children either before during or after these marriages and it is the following children that I am looking for.

Janet "Tiddy" SINCLAIR
David SINCLAIR
John "Jock" SINCLAIR
Annie SINCLAIR
James "Hamish" SINCLAIR
"Bina" SINCLAIR
William SINCLAIR died at age 36 of leukemia

Does anyone know of any of the birth or death dates for any of these family members? I am assuming that as they are SINCLAIR by name that they were perhaps born before Helen's first marriage or between her two marriages. Her first husband Benjamin died the same year as they were married in 1918.

Any info at all would be very much appreciated.

Many thanks
Wendy