In addition to Peggy's research, the following from the 1870 MS census is interesting and might lead to M F May's father. See child number 10.
Family Group Record FamilySearchâ„¢ Ancestral
File v4.19
http://www.familysearch.org/Download GEDCOM
Francis Marion MAY (AFN: 1WDN-D15) Pedigree Sex: M
In family of:
Submitter(s):
DOUG
MCBROOM Microfilm: NONE
1340
BLANCO COURT BENBROOK TX Submission: AF97-111407
USA 76126-4228
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Father shown is:
Husband's Name
Phillip MAY (AFN:1WDN-932) Pedigree
Born:
Abt 1793 Place: ?, ?, Ga
Christened: Place: Pictures: None.
Died:
Abt 1852 Place:
Simpson County, Ms
Buried: Place: None
Married:
Abt 1826 Place:
Pike County, Ms
Father: Joseph B. MAY (AFN:V7SL-FK) Family
Mother: Sarah Jane UNKNOWN (AFN:1B63-QMG)
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Wife's Name
Elizabeth UNKNOWN (AFN:1WDN-CP4) Pedigree
Born:
Abt 1810 Place: ?, ?, Ga
Died: Aft 1860 Place: ?, ?, Tx
Married:
Abt 1826 Place:
Pike County, Ms
Father:
Mother:
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Children
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1. Sex Name
M Phillip L. MAY (AFN:1WDN-CQB) Pedigree
Born:
Abt 1827 Place: ?, ?, Ms
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2. Sex Name
F Martha A. E. MAY (AFN:1WDN-CRJ) Pedigree
Born:
Abt 1829 Place: ?, ?, Ms
Died: Aft 1870 Place:
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3. Sex Name
F Margaret J. MAY (AFN:1WDN-CSQ) Pedigree
Born:
Abt 1831 Place:
Simpson County, Ms
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4. Sex Name
F Catherine MAY (AFN:1WDN-CTX) Pedigree
Born:
Abt 1833 Place:
Simpson County, Ms
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5. Sex Name
M Floyd MAY (AFN:1WDN-CV5) Pedigree
Born:
Abt 1834 Place:
Simpson County, Ms
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6. Sex Name
F Parthenia MAY (AFN:1WDN-CWC) Pedigree
Born:
Abt 1837 Place:
Simpson County, Ms
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7. Sex Name
M Joseph G. MAY (AFN:1WDN-CXK) Pedigree
Born:
Abt 1838 Place:
Simpson County, Ms
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8. Sex Name
M William J. MAY (AFN:1WDN-CZR) Pedigree
Born:
Abt 1840 Place:
Simpson County, Ms
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9. Sex Name
M John W. MAY (AFN:1WDN-D0X) Pedigree
Born:
Abt 1843 Place:
Simpson County, Ms
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10. Sex Name
M Francis Marion MAY (AFN:1WDN-D15) Pedigree
Born:
Abt 1846 Place:
Simpson County, Ms
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11. Sex Name
M Richard P. MAY (AFN:1WDN-D2C) Pedigree
Born:
Abt 1848 Place:
Simpson County, Ms
Died: Aft 1900 Place:
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12. Sex Name
F A. MAY (AFN:1WDN-D4R) Pedigree
Born:
Abt 1852 Place:
Simpson County, Ms
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13. Sex Name
M Matthew G. MAY (AFN:1WDN-D3K) Pedigree
Born: Oct 1849 Place:
Simpson County, Ms
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