Gwen,
This is in reply to your request for some help, I have searched around the free sites that are out there and found the following information. I'm not sure if this is what you are looking for, but maybe someone can use it.
Griffith's Valuation was done in 1854 for Co. Longford. The following names are listed in Clongesh Parish. Alexander Adams- Townland, Lisnabo.
Alexander Beatty Jr, Alexander Beatty Sr, Townland- Cleggill. Richard Tanner,-Townland, Cleggill.
LDS Site- Alexander Beatty, b. Abt 1801 Longford, Isabelle Florance Bolles, b. Abt 1803 Longford.
They had a daughter-
Isabelle Beatty b. 1827 Cleggill, Clongesh.
She married Richard Tanner, b. Abt 1825.
They had the following children:
Isabel Florance Tanner b. Sept 1847
Ambrose b. Abt 1849
Archibald b. Abt 1851
Jennie b. Abt 1853
Mamie b. Abt 1855
Isabel Florance Tanner traveled to the US and married Alexander Shannon b. Abt 1843 in Hartford. Ct. on May 21, 1874.
Their children are, Jane, Alexander, Isabel Florance, Mary, and Elizabeth.
In your post, you mention a Alexander Holmes Beatty. There is a Ellen Holmes listed in the GV in the same townland as Alexander Adams, townland of Lisnabo. May be a connection there?
Also in the GV, I found 2 Parishes with a Ambrose Bole, may be a connection to Isabelle Florance Bolles b. Abt 1801. They were in Maydow and Taghsheenod Parishes.
Alexander Beatty married Elizabeth Adams on October 23, 1849 in Clongesh.
I hope this is of some help to you, if not, to someone with these surnames. Good Luck with your searches.