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

Galusha, Elijah G.

Throop, Lucy

20 Feb 1803

Livingston Co.

2a.  Census Index:  U.S. Selected Counties, 1810 (Broderbund CD-313).  Please see my WARNING regarding use of this database (the numerical data have the genders switched). 

1810

Galusha, Elijah

KY

Caldwell Co.

p. 7

30100-1110000

Also in county:  Elijah's step-father, Col. Matthew LYON.

2b.  1810 Census Index and Digital Images (online at Ancestry.com; Image #5 of 19; extracted by Diana Gale Matthiesen):

1810

KY

Caldwell Co.

p. 203/384

Elijah Galusha

11100-30100-00

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	9 or under	1800-1810	= Son A
1 male	10-15	1794-1800	= ?
1 male	16-25	1784-1794	= Elijah (b. 1780)
3 females	9 or under	1800-1810	= Daughter C = Daughter B = Daughter A
1 female	16-25	1784-1794	= Lucy

Either Elijah's presumed birthyear is incorrect or he is in the wrong age class here, but there is little doubt he is our subject.  The teenage boy could be Elijah's son from a previous marriage, but it's a stretch; more likely he's hired help or other kin.

3.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).