Templemans in Hertingfordbury

My mum’s maiden name was Templeman and we have traced her family tree to Hertingfordbury, Letty Green, Staines Green, etc.  We are back to 1668 ish, but have been unable to locate any other Templemans still in the area.  We are also having trouble finding out more than just facts about them.  Also, because they were poor, there are no headstones in St Mary’s church, or records of exactly where in the churchyard the family graves are.  Is there anyone out there who can help with our researches concerning Hertingfordbury and its rural workers who lived and died in Hertingfordbury and the surrounding Greens? 

Regards

Edna (daughter of Doris).