Said to have had this child:
.  Malinda CORBIN

1.  Jordan R. Dodd, ed.  1993.  Virginia Marriages:  Early to 1850.  Liahona Research, Orem, UT (Broderbund CD-229):

Corbin, John B.

Hack, Sarah Jane

25 Jul 1848

Accomack Co.

2.  1850 Census Index/Images (online at Ancestry.com; Image #30 of 42):  7th Election Dist., Worcester Co., MD, p. 178B, 28/30, enumerated 12 Sep 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

John B Corbin	24	M		Merchant	5000	Md
Sarah J   "	23	F				Va
John W B  "	10/12	M				Md
Tabitha Bacon	12	F				"
Levin J CORBIN	16	M		Merchant		"
Mary Hauvan/Hanvan	24	F	M			"

Levin is John's brother.

3a.  1860 Census Images (online at Ancestry.com; Image #10 of 26):  Snow Hill P.O., Atkinsons District, Worcester Co., MD, p. 600, PN 93, 659/656, enumerated 11 Jul 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):

John B Corbin	33	M		Farmer		3500	Maryland
Sarah J  "	32	F					"
John W   "	10	M					"
Mary     "	6/12	F					"
John Smith	21	M		Laborer			"

Living next door to John's brother, Levin CORBIN, and their widowed mother, Sarah (BACON) CORBIN, who is two doors from Margaret CORBIN. 

3b.  1860 Slave Schedule Images (online at Ancestry.com; Image #1 of 2; missing columns contained no data):  Atkinsons District, Worcester Co., MD, p. 595A, PN 11, enumerated 25 Jun 1860 (extracted by Diana Gale Matthiesen):

Names of Slave Owners	Number of Slaves	Description
		Age	Sex	Colour
John B Corbin	1	16	M	B
	1	53	F	B
	1	10	M	B

Listed next to Eliza CORBIN, who is next to Sarah E. CORBIN.

4.  1870 Census Images (online at Ancestry.com; Image #5 of 34):  Snow Hill P.O., 7th Election District, Worcester Co., MD, p. ?, PN 1, 4/4, enumerated 2 Jul 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):

Corbin John B	44	M	W	Farmer	2000	1000	Maryland
______ Sarah	43	F	W	K House			"
______ John	20	M	W	Works on farm			"
______ Mary	8	F	W				"
Evans Francis	20	M	W	Works on farm			"
Corbin Williams	35	M	B	Works on farm			"
______ Margaret	15	F	B	Domestic			"

Listed two households from John's sister, Eliza CORBIN.

5a.  1880 United States Census and National Index (LDS Family History Resource File: CD-ROM Library):

Census Place: Atkinsons, Worcester, Maryland
Source: FHL Film 1254518; NARA Film T9-0518; Pg 347B
	Relation	Sex	Marr	Race	Age	Birthplace	Occupation	Fa	Mo
J. B. CORBIN	Self	M	M	W	55	MD	Farmer	MD	MD
Sarah J. CORBIN	Wife	F	M	W	54	MD	Keeping House	MD	MD
Minnie CORBIN	Dau	F	S	W	19	MD	At Home	MD	MD
Bill CORBIN	Other	M	M	B	31	MD	Works On Farm	MD	MD
Leoin CORBIN	Other	M	S	MU	30	MD	Works On Farm	MD	MD

"Leoin" is "Levin." See next source.

5b.  1880 Census Images (online at Ancestry.com; Image #18 of 32):  Atkinsons District, Worcester Co., MD, p. 374B, PN 12, SD 2, ED 102, enumerated 21/22 Jun 1880.  I checked the page image, and "Leoin" is "Levin."  The two "Other" fields are simply blank.  Bill is check off as married, possibly to Adeline CORBIN (black, æ 34, with four children), who is living next door as head-of-household.

6.  LDS.  Family Search: Internet Genealogy Service:  AF - Ancestral File (online at FamilySearch.org).