What about black and red diced hose with not MacGregor?

[AKScott]

Red & black: Rob Roy MacGregor
Red & green: Moncreiffe, formerly MacLachlan
White & black: Shepherd check, or Northumberland
Green & black: Robin Hood, or Hunting Rob Roy MacGregor
Red & white: MacMedic

There are only so many color combinations for diced hose, and the most common ones are already registered tartans. Note that the last combination has been used in the Highland regiments for years before it became a registered tartan. Apparently the Scottish Tartans World Register and the Scottish Register of Tartans didn't think that disqualified the "MacMedic" tartan from becoming a registered tartan. I think the obvious lesson is that diced hose are not considered to be the same as tartan.

The rest of these I did not know, thank you.

MacGregor/ Rob Roy, WR#1504:


Moncrieffe, WR#963:


Northumberland, WR#2444


Robin Hood is in the STWR, as WR#785


And MacMedic is in there too, WR#2684: