Sam Frost was the husband of Mary Louise Winkler.
The following biographies were published in

Memorial and Biographical History of Navarro County (1893)
and History of Navarro County (1933).

This biography appeared in
A Memorial and Biographical History of Navarro, Henderson,
Anderson, Limestone, Freestone and Leon Counties, Texas
(Chicago, Ill.: The Lewis Publishing Company, 1893), at pp. 137-38

Judge Samuel R. Frost was born in Montgomery county, Texas, March 1, 1846, and was brought by his parents to Navarro county the same year.  He was reared on his father's farm in the western part of the county and received his early education in the common schools of that locality.  In 1863, at the age of seventeen, he entered the Confederate army, enlisting in Company I, Nineteenth Texas Cavalry, and served as a private in Arkansas, Missouri and Louisiana, until the close of the war.  In 1867 and 1868 he attended school at Alvarado, Texas.  March 1, 1869, he began reading law under Judge C. M. Winkler, and in October, 1870, was admitted to the bar at Corsicana before Judge F. P. Wood.  In 1871 he was appointed county attorney of Navarro county and served in that capacity until removed by the provisional governor as an impediment to reconstruction.  In 1876 he was elected county judge of Navarro county and held that office two years.  In 1878 he was elected to the Sixteenth Legislature, representing Navarro county in that body.  In 1886 he was appointed by Governor Ireland judge of the Thirteenth Judicial District, to fill a vacancy caused by the death of Judge L. D. Bradley, and after serving that term out he was elected to the same position and held it for two years.  In the meantime he was elected floater for the flotorial district composed of the counties of Johnson, Hill, Ellis and Navarro, and served in the Twenty-first Legislature.  Resuming the practice in 1889, he has continued at it since and now enjoys one of the largest law practices in Navarro county.   In January, 1872, he married Miss Mary Winkler, a daughter of Judge C. M. Winkler, a sketch of whom appears elsewhere in this volume, Mrs. Frost being a native of Navarro county.

This biography appeared in Annie Carpenter Love,
History of Navarro County
(Dallas, Tex.: Southwest Press, 1933), at pp. 258-59

Samuel R. Frost was born in Montgomery County in 1846 and his family moved to Navarro County in the same year. Mr. Frost grew up on his father's farm in the Dresden-Raleigh community and went to school until he joined the Confederate Army at the age of seventeen. After returning from the War in 1869 he began reading law and was admitted to the bar. He was appointed county attorney of Navarro County and elected county judge in 1876. In addition to holding local offices he was also district judge and a member of the Legislature.

Judge Frost married Mary L. Winkler and they lived for many years on Third Avenue where the Tatum and Eden homes now stand. As the town of Corsicana grew Judge Frost moved to the Southwest edge of town and built a new and finer home and planted trees and shrubs which he so much loved.

A. N. Justiss and George E. Jester are each a son-in-law of Judge Frost and the other sons-in-law are Max Almond, R. L. Calkins and Guy Gibson.