I believe the following information relates to the Millard and Addie Calla/oway you speak of in your post.
The Landmark, Statesville, North Carolina, December 25, 1900
Brought Back from Texas A North Carolina Moonshiner who escaped in 1896 Landed by Texas Officers.
In April, 1896, M. M. Callaway, of Watauga County, NC was convicted in the Federal Court at Statesville, North Carolina, of removing spirits and sentenced to 18 months imprisonment in the penitentiary at Albany, NY. Soon after this Mr. T. J. Allison, then United States marshal, started to Albany with Callaway and other prisoners. The marshal stopped at Greensboro to get other prisoners, expecting to spend the night there and go on to Albany next day. In getting off the train at Greensboro Callaway, who was in the charge of a deputy, made his escape. It was learned afterward that he had gone to Texas, where his father and other relatives lived, and papers were sent for him. Wednesday United States Deputy Marshal R. M. Warden, of the northern district of Texas, with headquarters at Dallas, and Mr. E. F. Gates, assistant chief of police of Dallas, arrived in Statesville with Callaway.Callaway had been living in Rockwall County, Texas, but he had, Marshal Warden says, been implicated with some of his kinsmen in a cattle stealing scrape, and for the past 18 months Callaway had lived in Virginia. The Texas officers kept track of him, however, and from Virginia he went to Mountain View, Oklahoma, where Marshal Warden arrested him on the 10th of the present month. Callaway will have to be resentenced before he can be sent to the penitentiary for the crime of which he was convicted in the Federal Court here, and it is presumed that he will remain in jail until the regular term of the court next spring. Callaway's full name is Milliard Monroe Callaway and in Texas he passed under the name of J. M. Monroe. He has a wife and children at Mountain View, Oklahoma.
From the 1920 Harris Co., TX Federal Census: Houston Twp ED # 100 Page 18A M M Calloway 46 NC mail clerk Addie Calloway 32 wife GA Edgar M Calloway son 24 NC
From the 1930 Harris Co., TX Federal Census: Houston Dist 30 page 5A d/h 66/69 Monroe M Calloway 4000 age 57 married 21 years mail clerk railroad NC NC NC Addie Calloway wife 42 married 17 years GA GA GA
His son Edgar - From the 1930 Harris Co., TX Federal Census: Houston Dist 32 page 21A d/h 244/254 Edgar Calloway 3800 age 34 cashier Oil Co NC Bennie S Calloway wife 30 TX Edgar P Calloway son 1 3/12 TX Lou H Payne mother-in-law 63 widow LA
Millard Monroe Callaway is the son of Isom T. Callaway, Jr. b. 1848 in NC and Mary A. Simmons b. 1853 in NC.