Some of this data conflicts with the above - hmm... ?2 James Martin Snow/Mary Smiths? There is a James Martin Snow, husband of Mary Smith, son of James Snow and Nancey E Smith, died 1933. However, this would sort of disprove that 2nd marriage as it appears that Mary was still alive in the 1920 Census Was JB's 1st wife Barbara Elulalia Parker Snow? Because JB and Barbara are living with James and Mary in 1920. Then by 1930 James M widower, is living with JB and new wife 'Willie - same JB because children have same names as 1920 census.
There is also a lot of data on a Pearl Snow and Will J or J William Morgan, but it appears she may possibly be 'Martha Pearl' and not Nancy Pearl.
There is more on this family group on familysearch.org. Good Luck.
Name: Lillie Snow Lippard
Death 27 Jan 1962 Statesville, Iredell, NC
Burial 29 Jan 1962 Statesville, NC Cemetery Oakwood
Residence: RFD 8 Statesville, Iredell, NC
Status Female White Married
Birth 22 Jan 1887 Wilkes County, N.C.
Parents James Martin Snow Mary Smith
Spouse Alexander Brown Lippard
Reference Number: certificate # 1776
Film Number: 1953249
Name James Martin Snow
Death 27 Aug 1933 Dunlap, Iredell, NC
Burial 28 Aug 1933 Iredell County, NCHebron Cemetery
Residence: R.F.D. # 1 Olin Township Dunlap, NC
Male White Widowed 73
Birth 07 Apr 1860 Iredell County, NC
Father James Snow Birth Iredell County, NC
Mother Nancy Smith Birth: Iredell County, NC
Spouse Mary Smith
Name: Barbara Elufelia Snow
Death 01 Jul 1924 Fallstown, Iredell, NC
Female White Married Spouse J. B. Snow
Birth 24 Jan 1894 Wilkes Co., NC
Father A. E. Parker s Birthplace Wilkes Co, NC
Mother Nelia A Moore Birthplace Wilkes Co, NC
Residence Troutmans, NC
Burial 02 Jul 1924
Cemetery Bethel Baptist Church Troutman or Tristman? NC
Undertaker JB Maugh & Co.