I MAY have found your Thomas B. Griffin and Alief Gaddy!!
1880 Census, Lanes Creek Twp, Union Co, NC, p. 404A
Thomas B. GRIFFIN-Self-62
Larah J. GRIFFIN-Dau-21
**Thomas B. GRIFFIN-Son-19
Sandy D. GRIFFIN-Son-17
All born in NC
1880 Census, Monroe Twp, Union Co, NC, p.347B
Lydia M. GADDY-Dau-13
All born in NC
Wilson P. Gaddy md. on Sep 7, 1865 in Union Co, NC to Juliet F. Austin.
Lydia M. Gaddy, age 17, d/o W.P. & J.F. Gaddy, married on Sept 4, 1883 in Union Co, NC to J.W. Stegall, age 31, son of Joseph & Sarah Stegall.
Thursday, January 15, 1891, MONROE REGISTER (Union County, NC)
-Last Tuesday evening, Messrs. Milas PYRON, Archie CHANEY, W. MEDLIN, **W.P. GADDY**, M.C. HAGLER and Frank BASS, with their families, and probably one or two others whose names we failed to get, all of this county, left for ARKANSAS. We regret to see them leave North Carolina, but hope they may meet with success in their new homes.
I though you might find these other newspaper articles interesting, since they describe the massive migrations from NC to Arkansas:
January 7, 1890, THE CHARLOTTE NEWS (Mecklenburg Co, NC)
Still Leaving Union County: A large party of white emigrants from Beaver Dam, Monroe and Ames', arrived in the city last night on the Carolina Central passenger train. Their baggage, amounting to a car load, came in on a freight train preceeding (sic) the passenger train. There were 75 white people in the party, and they were bound for Arkansas. This is the second party of white people to emigrate from Union county within a few weeks past.
January 7, 1890, CHARLOTTE CHRONICLE (Mecklenburg County, NC)
EMIGRATION AGENTS: They Were Working in Charlotte Yesterday, and Made Some Converts.
Emigration agents have struck Charlotte. Yesterday all day long groups of negroes could be seen at different places on the streets. They usually surrounded a white man, who was constantly portraying, in a very impassioned manner, the superior advantages and inducements offered by Arkansas and other Southwestern States. A CHRONICLE reporter, in his rounds yesterday, frequently stumbled upon the agent and his eager and interested hearers (sic). Occasionally some of the negroes who are opposed to the emigration movement would argue the question, but the glowing picture of the great Southwest contrasted with what the agent called the depressed condition of affairs in North Carolina, in many cases, convinced the darkies that the objective point of the emigrant is far superior in every aspect to North Carolina.
The agent began work in Charlotte yesterday, and the reporter learned that some of the negroes are already seriously considering exodusting (sic).
The agent said that he wanted to establish a settlement in Woodruff county, Arkansas, but that he will take emigrants to Mississippi, Alabama, or other parts of Arkansas. He says that he wants to secure 50 white families, and will take any number of negroes, from 50 to 500. Farms, provisions, and railroad fare are offered on the same conditions upon which so many have already gone. The agent may get enough negroes and whites, too, to fill his orders, but many of the Charlotte negroes are averse to the idea of trying the realities of the other side of the Mississippi.
Jan 8, 1890, CHARLOTTE CHRONICLE (Mecklenburg Co, NC)
MORE EMIGRANTS: The movement from North Carolina to the South and West Continues.
An emigrant train in charge of J.W. HICKS, passed through Charlotte Monday night. There were two carloads of negroes and about 100 white people. One man said that he had his wife, two sons and daughters, and 21 grand-children along with him. The whites were from Union and Moore counties, and were on their way to Texas and Arkansas. Another batch of emigrants passed through yesterday morning. There were about 200 negroes and a few white families. All of them were from the eastern counties, and were on their way to Alabama. The negroes said that the exodus movement will continue active, and that many more negroes will leave soon. They were in good spirits, and seemed hopeful.