Florence is reflected on a well documented family tree on ancestry.com as daughter of Joshua Frederick Grant and Drusilla Caroline Stoddard. Based on marriage citation with last known spouse, James Marshall Pearson, her last name then was Blacklock, this would make her second marriage to a Charles Blacklock (1880-1947), no children are named to that marriage. Her first marriage would have been to a William M. Hunt (1877-?), four children are named to that marriage in Meech Family tree on ancestry.com, Rosetta Hunt (1903-?), Margaret Hunt (1906-?), Lucella Hunt (1909-?) and one other child showing as private, on ancestry.com that would reflect still living but in this case based on other children's birth years they are most likely deceased.

Looking at all the census records that would have revealed children none are listed for her which suggests that family tree that named them is inaccurate and there were no children with William Hunt or children either went with father or another family member. She is named in all census records but only with parents or spouses but no children. This will all need to be clarified with family that may step up. I also researched William M. Hunt and all census records he is named in no children are mentioned. This casts great doubt on the Meech Family tree results of any children for Florence.

I was unable to contact owner of this tree to find out where she got her finding for these children, she does not allow contact, I decided to go to one of the named children, Rosetta and she appears on a 1920 census that reflects her and and her three siblings with a William and Florence Hunt, they are living in Weber City, UT, what makes this unlikely it's the same Florence is that she was remarried in 1918 to a Charles Blacklock. Based on this finding, I believe that Florence had no children in all three marriages.

All the marriage citations are listed below for all three marriages, she was divorced from first two husbands.

Utah, Select County Marriages, 1887-1937
Name Florence E. Grant
Gender Female
Age 24
Birth Date 1884
Marriage Date 27 Jun 1908
Marriage Place Salt Lake, Utah, United States
FHL Film Number 429300
Household Members
Florence E. Grant
William M. Hunt

Divorce
Florence E. Grant (1883-1965)
Fact Details
bef. Apr 1918
Spouse
William M. "Billy" Hunt

Florence Grant Hunt in the Utah, Select County Marriages, 1887-1937
Name: Florence Grant Hunt
Gender: Female
Age: 32
Birth Date: 1886
Marriage Date: 22 Apr 1918
Marriage Place: Salt Lake, Utah, United States
Spouse: Charles W. Blacklock
FHL Film Number: 429098

Utah, Select County Marriages, 1887-1937
Name Florence Grant Blacklock
Gender Female
Marriage Date 31 Oct 1928
Marriage Place Cache, Utah, United States
FHL Film Number 430323
Household Members
Name Age
Drusilla Stoddard
Joshua F Grant
Florence Grant Blacklock
James Marshall Pearson
James W Pearson
Mary Gray

California, Death Index, 1940-1997
Name Florence G Pearson
Gender Female
Birth Date 1 Sep 1883
Birth Place Utah
Death Date 9 Nov 1965
Death Place Los Angeles
Mother's Maiden Name Stoddard