.  Frederick HOVIS, b. ca. 1770; m. 5 Feb 1793, Lincoln Co., NC, Mary "Polly" RUDISILL
.  Susannah HOVIS, b. ca. 1773; m. 23 Jun 1792, Lincoln Co., NC, Peter HOYL
.  George B. HOVIS, Jr., b. ca. 1777; m. 3 Feb 1800, Lincoln Co., NC, Eve CLONINGER

.  John A. HOVIS, b. 1768 
.  Andrew HOVIS, b. 1770
.  Peter HOVIS, b. 1772
.  Michael HOVIS, b. 1774
.  Sarah HOVIS, b. 1776

The even spacing of Rucker's (1938) birthyears suggests they're estimates, and experience has shown that she was guessing wildly at the dates she gives.  Therefore, lacking better estimates, I have used the children's marriage year as an estimation of their birthyear (because the average male marries at age 23 and the average female at age 19).

1.  D.L. Murray & N.R. Murray.  1995.  Marriage Index:  MD, NC, VA, 1624-1915 (Broderbund CD-4):

-	-			-
Hoyl, Peter	Hovis, Sosana	23 Jun 1792	Lincoln Co.	NC
Hovis, Frederick	Rudicill, Polly	5 Feb 1793	Lincoln Co.	NC
Hoves, George Jr	Cloninger, Eve	3 Feb 1800	Lincoln Co.	NC

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

-	-	-	- Co.
Hoyl, Peter	Hovis, Sosanna	23 Jun 1792	Lincoln
Hovis, Franklin	Rudicill, Polly	5 Feb 1793	Lincoln Co.
Hovis, George Jr.	Cloninger, Eve	3 Feb 1800	Lincoln Co.

2.  Elizabeth Hoyle Rucker.  c1938.  The Genealogy of Peiter Heyl and His Descendants, 1110-1936...  Zolliecoffer Jenks Thompson et al., Shelby, NC (online at HeritageQuest at Genealogy.com):

p. 38

5 ELIZABETH HOYL, b. 1737, m. 1759, George Hovis, Sr., pioneer of the Hovis family.  Their farm was near the old Peiter Heyl place, and was of considerable extent, reaching a good distance up both river and creek.  George Hovis conveyed a part of this large farm to his son, Frederick Hovis, who lived there many years, until he sold it and moved to Lincoln County, Tennessee. Her children:   Frederick Hovis...  35 ...  b 1760. George Hovis Jr...  36 ...  b 1762. Margaret Hovis....  37 ...  b  Aug. 18, 1763. Susannah Hovis....  38 ...  b 1766. John Hovis........  39 ...  b 1768. Andrew Hovis......  40 ...  b 1770. Peter Hovis....... 41 ...  b 1772. Michael Hovis.....  42 ...  b 1774. Sarah Hovis.......  43 ...  b 1776.

As a source, Rucker has been demonstrated over and over that she was guessing wildly at dates.

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