Margaret Josephine was a daughter of:
Dr. Joel DeWitt (1816 - 1890)
and
Rachel Ann Mairs (1823 - 1912)

As several of her siblings did, she married a McCullough. He was a son of John McCullough and Elizabeth Bell and his name was Warren McCullough (1839 - 1906).

Their children were:

John Joel
(1866-1868)
{see link below}

Elfi Maud
(1868-1961)
m. Isaac S Bolt
{see link below}

Ellnore
(1870-1879)

Anna Elizabeth
(1871-1944)
m. John Winters
{see link below}

Bertha M.
(1873-1963)
m. Samuel Faulkner
{see link below}

Webster Elmo
(1877-1879)
{see link below}

Gird
(1878-1969)
m. Elizabeth Amber Harris
{see link below}

Eva Pearl
(1880-1959)
m. Robert Daly
{see link below}

Golda Dean
(1884-1898)
{see link below}

Clara Gail
(1888-Aft 1930)
m1. Augustus Harris
m2. William Murray

Does anyone know where their children Ellnore and Clara Gail are buried?

See attached obit in the photos.

Also a 5 generation photo has been added to this memorial without much explanation:
Here is the info about the 5 ladies:

Clockwise starting with baby, this five-generation picture includes
(***1.) Ruth Susan SEITZ (1908-1973) Ruth Seitz was born 24 June 1908 in Milan, Mo., where her father, Enoch Beery Seitz Jr. was superintendent of schools. She graduated from Radcliffe College in Cambridge, Mass., June 1929. Ruth married William Harlan Ware in June 1935. She died 24 May 1973 in Carmel, Calif.
(***2.) Hazeldean BOLT Seitz (1886-1979) Hazeldean Bolt was born 9 Nov. 1886 in Montgomery County, Iowa. She married first Enoch Beery Seitz Jr. 20 Aug. 1907 in Milan, Mo. She married second Nate Snyder in the 1950s. She died June 1979 in San Antonio, Texas.
(***3.) Elfie Maud McCULLOUGH Bolt (1868-1961) Elfie McCullough was born 25 Nov 1868 in Sullivan County, Mo. She married Isaac S. Bolt 14 Oct. 1885 in Milan, Mo. They were divorced at an unknown date before 1906. She died in 1963 in Los Angeles, Calif.
(***4.) Margaret Josephine DeWITT McCullough (1849-1937) Josephine DeWitt was born 8 July 1849 in Sullivan County, Mo. She is a daughter of Joel and Rachel DeWitt. She married Warren McCullough on 2 July 1865 in Sullivan County. She was active in the Women's Christian Temperance Union. She died 30 April 1937 in Milan.
(***5.) Rachel Ann MAIRS DeWitt (1823-1912) Rachel Ann Mairs was born 7 May 1823 in Stuebenville, Jefferson County, Ohio. She married Joel DeWitt 1842 in Jackson County, (W.) Va. They moved to Missouri in 1845. She died 26 Feb. 1912 in Sullivan County, MO.