Ervin Samuel Brock was my 1st cousin three times removed. About 1897, he married a lady named Sarah Florence, with two young daughters named Lone Nubie, born May 1879 and Mary P. Morris, born Mar 1884. 
The family, minus Ervin Samuel, is listed in the 1900 Census for Cheraw, South Carolina.
Details of the above family are as follows:
1900 U. S. Population Census
Cheraw, Chesterfield County, South Carolina, enumeration district (ED) 0017, Page: 7A/26 (stamped), Line 28, Dwelling 113, Family 113, Household of Sarah BROCK;
Line 28 - BROCK, Sarah, Head, b. May 1860, age 40, married 3 years. 6 children, 4 Living, b. NC
Line 29 – Nubie, Lone, Daug., b. May 1879, age 21, Single, b. SC
Line 30 – Morris, Mary P., Daug., b. Mar 1884, age 16, Single, b. SC
Line 31 – Brock, Lillie, Daug., b. May 1900, age 0/12, Single, b. SC
Why Ervin Samuel and his new wife Sarah Florence are not living together in June 1900 is not known, especially since they have a newborn daughter, Lillie Brock.
What is known is that Ervin Samuel was found in household with another daughter, Nellie and his son Irvin Jr. with his brother and sister? 
1900 CENSUS: Cheraw, Chesterfield County, South Carolina; Roll: 1523; Enumeration District: 17; FHL microfilm: 1241523, Page: 6B; Line 95, Dwelling 109, Family 109; Samuel BROCK, male, age 50, born Oct 1849 in SC; Irving BROCK, Son, age 30, born Mar 1880 in SC; Nellie BROCK, Daughter, age 3, born Jan 1897 in SC; Elizabeth BROCK, Sister, age 57, born June 1845 in SC and Alexander BROCK, Brother, age 52, born June 1847 in SC.
While the 1900 Census shows that Sarah Florence had 6 children four that were now living; it doesn’t show that she was previously married although the surname NUBIE and MORRIS suggests a possibility of two previous marriages.
We do know that Sarah Florence had 4 living children; two by previous marriages (Lone Nubie & Mary P. Morris) and two from her marriage to Ervin Samuel Brock (Nellie and Lillie).
Ervin and Sarah daughter Mary Pauline Morris married my Grand Uncle John Hezekiah BROCK.
Mary Pauline, my Grand Aunt, died in 1938 in Stanly County, North Carolina. Her obituary in the January 1938 edition of the Stanly News and Press made no mentioned of her parents. 
Next was her death certificate at the Stanly County Courthouse. Her NC Death Certificate lists her parents as William Morris and Florence Newton. So now we have the following possibilities for her maiden name.
Sarah Florence ???
Sarah Florence Newton
Sarah Florence Nubie
Sarah Florence Morris
My next move was to search for a Newton with a daughter Lone Nubie, born May 1879. So my next stop was the 1880 census.
This looked like a good match but the birth date and number/names of children didn't match up so I continued my research.
1880 CENSUS: Mount Gilead, Montgomery, North Carolina; Roll: 973; Family History Film: 1254973; Enumeration District: 127; Image: 0329; Page 166C(stamped); Line 22, Dwelling 341, Family 341; William MORRIS, male, age 43, born in NC and Sarah F.MORRIS, Wife, age 25, born in NC; ...
I knew from my cousin Patsy that Sarah Florence daughter with the surname Nubie was also called “Dissie”. After some searching I came up with this listing:
1880 CENSUS: Morven, Anson County, North Carolina; National Archives Film T9-0951; Family History Film: 1254951; Enumeration District: 002; Image: 0492; Page 350A (stamped); Line 28, Family 225, Dwelling 243; Minna NUBY, While, Female, age 52, born in NC; Sarah NUBY, Daughter, White, Single, age 20, born in NC and Disola NUBY, Grand-Daughter, White, age 1, born in NC.
Now we have identified Sarah and her daughter Dissie Lone living with her Mother “Minna” NUBY in 1880.
Continuing our research of the census we are looking for a NUBY family with a wife Minna and a daughter Sarah Florence. Then in the 1860 Census for Chatham County, North Carolina we hit pay dirt and find the elusive parents of Sarah Florence and determine that her maiden name is NEWBY. 
1860 CENSUS: Middle Division, Chatham, North Carolina; Roll: M653_892; Image: 222; Family History Library Film: 803892, Page: 2/111(stamped); Line 23, Dwelling 575, Family 522; Nathan NEWBY, Male, age 24, born in NC; Jemima NEWBY, Female, age 28, born in NC and Sarah F. NEWBY, Female, age 1/12, born in NC.
The search for Sarah Florence NEWBY took some time and lead us on a few “bunny trails” that proved unproductive but in the final analysis we are certain that we found the correct Sarah Florence.
My personal comments: I believe that Sarah Florence marriage to Ervin Samuel Brock was most likely here 2nd marriage; so we have an unknown marriage still to discover.
My reason for this is her statement that she had six children, 4 living in 1900 and had been married 3 years. We know at this point in her life that the last two children – Nellie & Lillie - were the children of her current marriage leaving 4 children, two of which are now deceased born prior to her marriage in 1897 to Ervin Samuel. Her first daughter was Dissie Ione Newby was most likely born to an unwed mother. Did Sarah Florence marry William Morris the stated Father of Mary Pauline Morris. At this time I do not know and more research is required.
 1900 U. S. Census, Chesterfield County, South Carolina, population schedule, Cheraw, Chesterfield, South Carolina, enumeration district (ED) 0017, Page: 7A/26(stamped), Line 28, Dwelling 113, Family 113, Household of Sarah BROCK; digital images, Ancestry.com (http://ancestry.com : viewed 26 May 2013); citing National Archives Microfilm T623_Roll: 1523.
 1900 U. S. Census, Chesterfield County, South Carolina, population schedule, Cheraw, Chesterfield County, South Carolina, enumeration district (ED) 17, Page: 6B; Line 95, Dwelling 109, Family 109, Household of Samuel BROCK; digital images, Ancestry.com (http://ancestry.com : viewed 2 June 2012); citing National Archives Microfilm T623_1523.
 Mrs. J. H. Brock obituary, The Stanly News and Press, Albemarle, Stanly County, North Carolina, 1 February 1938, Page 1, Col 1.
 State of North Carolina, death certificate no. 57 (30 January 1938), Mrs. Pauline Brock; https://www.ancestry.com, Raleigh, Wake County, North Carolina.
 1880 U S Census, Anson County, North Carolina, population schedule, Morven, Anson County, North Carolina, enumeration district (ED) 002, Page 350A(stamped); Line 28, Family 225, Dwelling 243, Household of Mima NUBY; digital image, Ancestry.com (http://www.ancestry.com : viewed 26 May 2013); citing National Archive Microfilm T9-0951.
 1860 U. S. Census, Chatham County, North Carolina, population schedule, Middle Division, Chatham, North Carolina, Page: 2/111(stamped); Line 23, Dwelling 575, Family 522, Household of Nathan NEWBY; online database, Ancestry.com (http://www.ancestry.com : viewed 26 May 2013); citing National Archives Microfilm Publication M653, Roll 892.