Tom, a while back you advised us that when some 2000 Scottish nobles signed the Ragman's Roll in 1296, affirming allegiance to England's King Edward I (Longshanks), the name Caldwell (or variant spelling) does not appear among those giving their oath.

You presented the plausible hypothesis that no Caldwell was important enough.

You may well be correct. Yet this seems dubious to me in view of the fact that there was a large inheritable Caldwell Estate in Renfrewshire, and a Caldwell clan prominent enough that a William Caldwell was Prebendary of Glasgow 1348 and appointed Lord High Chancellor of the Scottish House of Lords in the mid 1300's.

Perhaps some vassal relationship existed between the Caldwells and Mures, by which a plea of loyalty by the Mures bound the Caldwells.

The Mure clan was well represented on the Ragman's Roll by at least six nobles: 1) Dovenal Le Fiz Michel More De Levenaches 2) Adam De La More Of County Ayr 3) Reginald (Renaud) Del More Of County Ayr 4) Gilcrist More Of Ayrshire 5) Reynaud Mor Of Cragg' Of Lanarkshire 6) Symon De La Moore Of Thangarstone (Thankerton). (Source: http://www.clanmuir.org/)

A few decades after the signing of the Ragman's Roll, a Caldwell heiress (given name unknown) married Godfrey More (Mure, Muir, More, Mor), son of Gilcrist Mure. Most of the Caldwell Estate in Renfrewshire thereafter became known as the Mure of Caldwell Estate (with a small portion known as the Little Caldwell remaining within the Caldwell clan).

Gilcrist Mure married his daughter and thereby secured the lands of Rowallan castle near Kilmarnock in Ayrshire. His granddaughter, Elizabeth Mure of Rowallan, daughter of Sir Adam Mure and Joanna (Janet) Danzielstou, married the future King Robert in 1346 [but had to wait years for approval by the Pope]. (Source: http://www.clanmuir.org/)

The marriage between the Mures and Caldwells in the early 1300s can be viewed in a sense as a joinder of two clans. I conjecture that this marriage favored the migration of Caldwells from the Mure of Caldwell base near Lochwinnoch to the Rowallan Estate west of Kilmarnock.

But you have found a Peter Caldwell acquiring Ayrshire lands west of Kilmarnock before the Mure-Caldwell marriage of the early 1300's.

Today there is no Caldwell placename west of Kilmarnock, yet I find a placename called Muirhouse on the map, about where you described as the location of Todriggs/Annanhill/ Annandale