Dear Irene: Thank you for the message. I gather from it that you are not looking for persons from Auchterarder. That is the area from which I have most information. If you have traced your family to that area, then I may be able to help you.
Nevertheless, I am most happy to check my family history for any of your family members.
The spelling of Mailer seems to be fairly precise within the last two or three hundred years. If you are spelling the surname Mailler, there may be a divergence or different family involved.
Please stay in touch with me. I would be most happy to help in any way I can.
Sincerely, William Mailer.