I am researching my gggf to learn about who his parents are. On the 1910 Census, for Thomas A Carey, his father's birthplace is listed as "Ire. English", but what is so strange is that there is a circle with about a third of it shaded in, and this is also in the father's birthplace box.
What could it mean? And for future research, what is the correct terminology for those things? Is "symbol" the right word? Is there a key for these symbols?
Here is the info for the specific page/record, if you'd like to take a look. http://search.ancestry.com/Browse/view.aspx?dbid=7884&pa...
You can also find it at 1910 United States Census, Thomas A. Carey, Oklahoma, Major County, Deep Creek, District 0173, page 11