Here is what I think we know about Archibald from the census records:
1. 1840 - There is an older Archd Mcquaig shown in the census of Chesterfield County, SC. In the 1850 census he has two sons listed named Colon.
2. 1850 - Archibald is not shown with John McQuage's family in the census of Marion County, SC, but is instead shown in the census of Russell County, AL with the Duncan McQuage/McQuaig family at age 28.
3. 1860 - He is shown in the census of Polk County, TX living with some of John McQuaig's grown children and his new wife Flora McDonald McQuaig living elsewhere with a Hall family.
4. 1870/80 - His family is next shown as McQuague's in the 1870 census of Polk County, TX and as McQuaige's in the 1880 census of San Jacinto County, TX.
5. 1900 - His wife Flora, son Archie, and married daughter Nellie Mauldin are next shown back in the census of Wayne County, MS. We assume that he had died in the 1880/90's.
I think we can surmise two different relationships from this census data:
1. Archibald is a son of John McQuage born 1786 and was away living with an uncle/cousin in 1850. John is also maybe a son of Angus McCuaig's son Malcolm born 1753 or John born 1751. Archibald again joined up with his father and siblings on the way west through Alabama/Georgia to Wayne County, MS. After John dies in 1855, Archibald, with his new wife and some of his siblings, moves to Polk County, Texas in 1859/60.
2. Archibald is a son of Malcom McQuaig born 1753 living with his brother Duncan in Russellville, AL in 1850, or possibly a son of the older Archibald from Chesterfield County, SC. He has a wonder lust and joins up with his uncle John and cousins moving west through Alabama/Georgia to Wayne County, MS. He, his new wife, and some of his cousins move on to Polk County, TX in 1859/60.
FURTHER BACKGROUND INFORMATION:
The fact that members of this family are shown together in census records may or may not be significant as to whether they are siblings or not. Scottish families usually came to this country in large family groups and migrated west and south the same way.
My father had always been mystified by the fact that there were two Duncan's in his great grandfather Norman's family shown in the 1860 Walton County, FL Census, as was I. The only record he had was a scribbled handwritten transcript of the 1860 census, and he did not know that there was only one Duncan born 1839 shown in the 1850 census. One day as I was doing some new work on Norman's brother Daniel's family of Marianna in Jackson County, FL, it jumped right off the page at me. Why hadn't I figured this out before? Daniel died in 1856 and his sons must have gone to live with relatives. The younger Duncan was Daniel's son Duncan Amon McQuagge born 1844. Sometimes the obvious is the hardest to see. There is also an Angus D. McQuagge shown in that census. We think he was Norman's wife Nancy Annie Gillis' brother Murdock's son who was raised from the age of 4 or 5 by his aunt and uncle after his father died in the 1830's. He was a Gillis, but he even took the McQuagge name. The older Duncan and Angus were both killed in the War of Northern Aggression - http://hometown.aol.com/mcquaggewd/family4.htmlhttp://hometown.aol.com/mcquaggewd/family4.html
John A. McQuaig Sr wrote to me in 1990: "My progenitor was Alexander McQuaig, born 11 Oct. 1747 in Killnaughton, Isle of Islay, Argyllshire Scotland. His father was Angus McCuaig.... (Records of the Free Church of Scotland--Old Kirk Presbyterians--and my present correspondants in Scotland spell the name as McCuaig.) Alexander emigrated ca 1785* from Islay to Cumberland County NC with his family and two brothers and their families. His brothers moved on the Anson, Robeson, and Richmond Counties in NC and some on to Marlboro, Chesterfield, and Darlington Counties in SC." *Later information leads to the year 1791.
The LDS records on Duncan born 1811 list a Malcolm as his father--data provided by a Robert McQuarrie. I have been in contact with a descendant of Robert McQuarrie in Salt Lake City, Utah. His progenitor Hector McQuarrie born 1768 married Ann McQuaig a daughter of Donald McQuaig oldest son of Angus McCuaig born 1708 . Hector's son Allen and his family sold a farm they worked on and had inherited from the widow of the owner and immigrated to the US from the Isle of Islay in the 1850's to "be with the Saints in Utah" after they were converts to the Latter Day Saints. Robert and his brother Hector were young boys at that time. Robert went back to Scotland later that century to trace the genealogy of his family and provided the information on his grandmother Ann McQuaig McQuarrie's family for the LDS records.
Any additional data or information is welcome here.