Hartley Crommack Families

I am looking for members of the Hartley family from Doncaster.
The family in the 1871 census in Doncaster are as follows
HARTLEY=William HARTLEY=Ellen[husband& wife] Ellens maiden name was CROMMACK]
CHILDREN ,John eldest,dob 1850 2.Eleanor 3. Emmiline 4.Mary 5.Clara 6.Anges 7.Bertha
8.Fred 9.Mabel Ann 10.ANN?
Have a bit of information where they were possibly christened . It is possible that Mary was christened on 28/2.1859 as that was her birth year. Bertha and Clara were believed to have been twins and they were christened on the 25/10/1863.
They i believe were christened at St JohnS, Preston,Lancaster.
If possible please could i please have some information on Ellen CROMMACK as she would be my 3xs great grandmother and i know nothing about her except that she married William Hartley.
William was a farmer , and i believe that EMMILINE possibly married ?Thompson[uncertain]
Please any information on ELLEN & HER FAMILY[CROMMACK] would be absolutely fantastic !!!!!!!!!!
Anything would be fantastic if anybody can find out anything about this family and its members no matter how small it is a beginning for me to look.