If you want to know, you have to pose the questions properly, and you have to use proper grammar (proper names should be capitalized; I know it's popular to type everything in lower case, but in genealogy, it's really annoying). Describe where your father was born, when, when he was married; where he lived; and if he's not still living, when and where he died. Do the same for every generation you know as far back as you know.
For example, here's mine:
Father: Othel Viron Chafin (b. 5 Jun 1923, Port Arthur, Jefferson Co, TX; d. 5 Jun 1997, Georgetown, Williamson Co, TX) married (17 Aug 1947, Georgetown, Williamson Co., TX) ) Norma Beatrice Bartley (b. 1 Sep 1925)
Grandfather: James L Medie Chafin (b. 18 Aug 1896, near Marietta, Love Co. OK; d. 20 Aug 1958, Georgetown, Williamson Co., TX) married (3 Jan 1921, Waco, McLennan Co., TX) Mary Josephine Oney (b. 2 Feb 1903, Waco, McLennan Co., TX; d. 21 Nov 1993, Austin, Travis Co., TX)
G-Grandfather: Joseph Newton Chafin (b. 18 Jun 1848, Newton Co., GA; d. 6 Jul 1934, Lampasas Co., TX) m. (1/17 Nov 1871, Blount Co, AL) Piety Ballard; (2/c.1881, prob. Marion Co, AL) Julia Dean Self (b. 23 Jun 1865, Marion Co., AL; d. 31 May 1953, Williamson Co., TX)
GG-Grandfather: William Chafin, Jr. (b. 1811, Jasper Co., GA; d. 12 Jul 1886, Fayette Co., AL) m. (1/4 Aug 1834, Newton Co., GA) Sarah N. Jones (b.c. 1808, prob. Jasper Co., GA; d.c. 1870, prob. Blount Co., AL); (2/c. 1871, Mary Ann ?)
GGG-Grandfather: William Chaffin, Sr. (b.c. 1773, Charlotte Co., VA; d. bt. 1860-1870, Newton Co., GA)
GGGG-Grandfather: Joshua Chaffin, Jr. (b.c. 1750, Charlotte Co., VA; d.c. 1835, Jasper Co., GA)
If you'll do it like that, someone might recognize a name or place and be able to help. Throwing out names with nothing more makes it virtually impossible for anyone to help. Try again with more detailed information. Good luck!
And just so you know, until the adoption of vital statistics laws "Chaffin" and "Chafin" were virtually identical.