I got a lesson recently about not taking anything for granted, or jumping to conclusions.
I was researching John Millar, a Master Baker from Alloa, Clackmannan, who married a relative of mine in Denny in 1852. I had the OPR of the marriage, his census info from 1861 and his Death Cert in 1868. I found him in Alloa on the 1851 Census listed as a Journeyman Baker, but couldn't find him in Alloa on the 1841 Census. On some of the censuses I found that one of his daughters was named Jane King Hay Millar.
On his Death Cert his parents are listed as Robert Millar, Master Baker and Jane King. I spent $10.00 to look at John Millar's will. While it was interesting, it didn't give me any new information. On the IGI there is a submission for a John Millar, born 1819, in Alloa, to a Robert Millar and a Jean King.
I went looking for John Millar's father. I found a Robert Miller, Master Baker on the 1841 Census in Denny. Living with Robert Millar are his wife Jane, and their children, three daughters and apparently three sons, David, James, and a John Miller, Journeyman Baker, born about 1821.
"This must be him."
I thought. "Even though the census lists all the members of this household as being born in Stirlingshire, a mistake could have been made."I looked up the death of Robert Miller of Denny. I was a little surprised to find that his wife's maiden name is listed as Jean Hay and not Jean King. Then I remembered that John Millar had named one of his daughters Jean King Hay Millar. Maybe some other little mistake had been made.
I was sure that my John Millar was the son of this Robert Miller of Denny. It seems that Robert Miller was a relatively prosperous Baker, and hoping to find some mention of my family spent another $10.00 to look at his will.
In the Will, Robert Miller of Denny leaves everything to his wife and sons David and James. There is no mention of John anywhere.
In fact Robert Miller says that he wants to make sure that he is not favoring one son over the other and repeatedly mentions his two sons, James and David. This is the wrong family after all, but I had to read the Will of Robert Miller of Denny to find it out. Everything had fit so well that I had been sure that I had the right family. I still think that there is some relationship between Robert Miller/Millar, Master Baker, of Denny and John Millar/Miller, Master Baker of Alloa, but it is not of father and son. I also am pretty convinced that it is him living with these Millers on the 1841 Census. Maybe finishing out some kind of apprenticeship or something before he too became a Master Baker.
Sorry to be so long winded, but I just want to point out how easy it is to jump to conclusions at times in our research of our ancestors. I will be much more cautious in the future.
Regards
Sheila
It is easy for us all to take the wrong leaps sometimes, but it is good to remind ourselves to step back and have a second look. 
k