Hey Harold Coates,
Oh no! I'm sorry to hear that. The following resources outline the next best steps, including utilizing Find my [Device] if you had previously enabled it:
If you are unable to locate your device, follow these steps to report it local law enforcement:
Shortly after writing about what I thought was my loss I checked the 'Find my iPhone' app on the iMac and low and behold there was my iPad at my home.
I told it to sound off and I found it where my 5 year old Granddaughter had moved it to a room that we have never had the iPad. It was hidden by some pillows and a blanket. That is a good app....