Ralph, Thanks for checking the Irish Family History Foundation's database for Cavan in the period 1700-1920. The specific names, places, and dates mentioned in the will of Arthur Hutcheson of Carroll County, Georgia, USA are:
Nancy Hutcheson/Hutchinson Wallace in Tully, Killishandra, County Cavan (in 1896)
Mary Jane Scales in Clara, Killishandra, Ireland (in 1896)
Sam Hutcheson/Hutchinson - Killishandra, Ireland (in 1896)
Phoebe Hutcheson/Hutchinson - Killishandra, Ireland (in 1896)
Sophie Hutcheson/Hutchinson - Killishandra, Ireland (in 1896)
Arthur Hutcheson/Hutchinson was born 24 October 1818 in County Cavan; he was the son of Sophia Montgomery and Samuel Hutcheson; nephew of James Hutcheson (b. April 1793 in County Cavan, Ireland - Manor of Ashfield, Duharrick); James arrived in the New York City 4 May 1818; Arthur came to the US in 1836.
Latimer family names include: Hugh L. Latimer - born abt. 1810 Mary Ann Hutcheson/Hutchinson Latimer Their children: Margaret, Samuel, Sophia, Arthur H. (all born in County Cavan between 1841 and 1848.)
I will be grateful for any suggestions you may have for obtaining more information about these families, and possible locating descendants.