Can you tell me anything about these (masonic?) gravestones in Beauly Priory Scotland

by FieldMarshalSaltykov

I was walking around Beauly Priory a few days ago and noticed these gravestones.

You can see the sculls and crossed bones in all the images, fleur-de-lis in the first image, somethings that looks like a hand holding a bell in image 2 and 3. And perhaps an egg timer in image 2. There's plenty of text but I couldn't read any of it.

Are these freemason graves? If so what's the significance of the symbols? How early were masons active in this area?

Also are these the skulls referred to in Keats and Brown's On Some Skulls in Beauley Abbey, near Inverness?

[deleted]

I do not believe these are freemason graves. Typically the major symbols on freemason graves are the square and compass, the "g", three links of a chain, and two hands shaking. Also without knowing the writing it is pretty difficult. http://www.graveaddiction.com/symbol.html has a lot of good information on grave symbolism.
*edited out chain reference