Marcus was the dad. Pony the son.

History Of Missouri, A COMPENDIUM OF HISTORY AND BIOGRAPHY FOR READY REFERENCE. EDITED BY HOWARD L. CONARD.

New-York, Louisville, St. Louis: THE SOUTHERN HISTORY COMPANY. Halde.wan. Conard & Co.. Proprietors.
VOL. I. 1901. pp. 249-350

"Marcus Boyd, one of the most distinguished citizens of Greene County, was born in 1805, in Virginia, descended from Scotch ancestors who settled in that State during the colonial period. In young manhood he removed to Tennessee, where he interested himself in various public improvements, notably the inauguration of the Nashville & Tuscumbia turnpike.
In 1840 he removed to Missouri, and settled on a farm near Springfield. He was a Whig in politics, and became conspicuous in public concerns. In 1850 he was appointed receiver of the United States Land Office in Springfield. In 1854 he was elected to the Legislature, and he was again elected in 1858 and in 1860, being in the last two contests the candidate of the "Union Party," which denounced the intemperate politicians of all parties, pronouncing their schemes as ''entering wedges for the detestable plot of severing the American Union." His last legislative term was during the exciting period which preceded the Civil War.

The Legislature was dominated by the secessionists, and when the vote was taken on the Jackson Military Bill, purposed to aid the State in withdrawing from the Union, his was one of but nine opposing votes, and he was leader of the loyal little band. When war became imminent, he was the friend and confidant of General Lyon, in the operations preceding the battle of Wilson's Creek. He assisted in the organization of a regiment of Home Guards, of which he was elected lieutenant colonel. This command held possession of Springfield during the battle of Wilson's Creek, and was desirous of marching to the field when the conflict began, but remained at its post in obedience to orders. The regiment having been disbanded, the majority of its men enlisting in other organizations, Colonel Boyd assisted in the formation of the Seventy-fourth Regiment Enrolled Missouri Militia, of which he became commander, and which he led in the battle of Springfield, January 8, 1863.

In 1865 he was appointed postmaster at Springfield, and occupied that position at the time of his death, which took place November 30th of the same year. He was married in early life to Miss Eliza Hamilton, a native of Tennessee, who died shortly after their removal to Missouri, and he contracted another marriage at a later day. He was the father of fifteen children. Of his sons, Colonel S. H. Boyd engaged in the Union service, with one other, General Marcus ; the others were Confederates. E. H. Boyd became a surgeon in a Texas Regiment; William and Theodoric served under General Cabell in Texas; Audley was a sergeant in Campbell's Regiment, and Rufus served under General Lee, and became Secretary of State of Alabama. A daughter, Lulu, became the wife of Daniel C. Kennedy.

Colonel Boyd was a man of handsome appearance, six feet high, of massive physique, with dark brown hair, broad forehead, and a complexion fair almost to womanliness. Of great strength of character, he allowed no personal considerations to swerve him from the path of duty, and as a slave owner the war worked the destruction of his personal fortune."

Marcus M Boyd, son of William G Boyd and Martha EDMISTON Boyd was born into a large family of 11 children, he being the 5th child. His life spanned some of the best and some of the worst years that our country has ever experienced.

Marcus moved his family from Tennessee to Missouri in 1840, settling on a farm near Springfield, Greene County. He was married twice, first to Eliza H Hamilton on Feb 15, 1825 in Williamson Co TN. They were parents of nine children, six were born in Tennessee and the last three in Missouri. Eliza gave birth to 8 sons and one daughter, she died the day her daughter was born on Sep 15 1845. The child was named Martha Tennessee Eliza Boyd, for her mother and grandmother.

Sons of Marcus and Eliza were:

Sempronius Hamilton Boyd m. Margaret Muse McElhaney
Rufus King Boyd m. Amanda Jane Greenwood
Erastus Halloday Boyd m. 1st Mary Sophia Waddill
2nd Harriett Smith, 3rd Sarah Smith
Audley Shanklin Hamilton Boyd m. Araminta Threlkeld
Marcus M Boyd Jr m. Mary Elizabeth Stephenson
William Gibbon Boyd
Robert Boyd
Theodorick Joseph Boyd