Note: Middle initials listed as "1" indicate that the child is a "male child of" and the first name listed is that of the father. Middle initials listed as "2" indicate that the child is a "female child of" and the first name listed is that of the father. If the child's first name listed for one of these is that of a female, this indicates that the parent's name is that of the mother. Please submit any corrections to the Hart County KYGenWeb County Coordinator.
| Volume | Certificate # | Child's last name | Child's first name | Midlle Initial | Mother's last name | Mother's First name | Month | Day | Year |
| 71 | 35464 | OAKES | EMMA | PEDIGO | MAUD | 8 | 14 | 1919 | |
| 71 | 35463 | OAKES | EMMETT | PEDIGO | MAUD | 8 | 14 | 1919 | |
| 92 | 45673 | OAKS | LEONARD | R | HARPER | RUTH | 9 | 28 | 1920 |
| 28 | 13541 | OBANION | ANNIE | M | LINDSEY | VENER | 3 | 29 | 1914 |
| 60 | 29986 | OBANION | DOROTHY | M | LINDSEY | VERNIE | 6 | 14 | 1917 |
| 28 | 13911 | OBANION | GRACE | E | ADAMS | JENNIE | 3 | 2 | 1913 |
| 46 | 18014 | OBANION | HULON | C | CONYERS | MABEL | 4 | 23 | 1911 |
| 55 | 27118 | OBANION | JOHN | T | SHORT | ANGIE | 4 | 9 | 1918 |
| 41 | 20037 | OBANION | KATIE | W | CONYERS | MABB | 4 | 25 | 1913 |
| 93 | 46024 | OBANION | LLOYD | R | ROGERS | LIZZIE | 9 | 3 | 1915 |
| 207 | 93955 | OBANION | LYMOND | D | THOMPSON | MARY | 6 | 20 | 1918 |
| 105 | 52049 | OBANION | MARY | M | CAMPERS | MABEL | 10 | 9 | 1915 |
| 75 | 37311 | OBANION | ROBERT | S | ROGERS | LIZZIE | 8 | 29 | 1918 |
| 94 | 46980 | OBANNION | VIRGAL | ROGERS | UNKNOWN | 9 | 13 | 1913 | |
| 84 | 33503 | OBB | CECIL | L | STEVSON | EMMA | 7 | 21 | 1911 |
| 55 | 27104 | OBOMON | LURA | A | CONYESS | MABEL | 6 | 29 | 1918 |
| 45 | 17860 | OBRIEN | JOHN | HARGAN | CLEO | 4 | 20 | 1912 | |
| 57 | 28105 | OBRIEN | LIVELY | 2 | HAGAN | LEOLA | 5 | 18 | 1916 |
| 38 | 18694 | OGDEN | CARLEY | MEERS | LEONA | 4 | 18 | 1917 | |
| 114 | 45452 | OGDEN | GENEVIEVE | MAYERS | LEONA | 9 | 12 | 1912 | |
| 111 | 44160 | OGSDON | BERRY | L | REYNOLDS | MARY | 9 | 23 | 1911 |
| 17 | 8029 | OGSDON | GLADDIS | L | DAY | LUCY | 2 | 6 | 1914 |
| 150 | 59953 | OGSDON | HEWEY | L | KERR | MARY | 12 | 11 | 1911 |
| 46 | 18023 | OKINS | MARY | L | WRIGHT | ELIZABETH | 4 | 28 | 1911 |
| 17 | 6758 | OLDHAM | CLYDE | OLDHAM | JULY | 2 | 4 | 1911 | |
| 114 | 45482 | OLDHAM | GERTRUDE | MILLER | FLORA | 9 | 9 | 1912 | |
| 28 | 13560 | OLDHAM | MARY | OLDHAM | JULIA | 3 | 2 | 1914 | |
| 93 | 46019 | OLIVER | DELZIE | C | MEIRLEURBERY | PERNA | 9 | 7 | 1916 |
| 39 | 19217 | OLIVER | ZONA | M | ISENBERG | CAPENIA | 4 | 11 | 1920 |
| 73 | 29082 | ONEAL | BURT | 2 | MITCHUM | NANNIE | 6 | 13 | 1912 |
| 63 | 31300 | ONEAL | IRVIN | H | RUCKER | MARY | 6 | 22 | 1919 |
| 32 | 12579 | ONEAL | JAMES | H | RUCKER | MARY | 3 | 6 | 1912 |
| 52 | 25926 | ONEAL | RUBY | P | RUCKER | KATE | 5 | 6 | 1913 |
| 111 | 44158 | ONTERMAN | CARRIE | G | THOMPSON | BERTIE | 9 | 22 | 1911 |
| 61 | 30097 | OVERFEET | COY | 1 | ATWELL | HALLIE | 6 | 23 | 1920 |
| 101 | 50403 | OVERFELT | JESSIE | BUCKNER | MARY | 10 | 5 | 1917 | |
| 70 | 34922 | OVERFELT | LOY | H | FORBIS | ELLA | 7 | 14 | 1915 |
| 91 | 45363 | OVERFELT | MARY | A | MCKINNEY | LIZZIE | 9 | 5 | 1917 |
| 17 | 8040 | OVERFELT | OWEN | W | CONYERS | BETTIE | 2 | 28 | 1916 |
| 126 | 62711 | OVERFELT | RICE | G | HENSLEY | DELLEY | 11 | 1 | 1920 |
| 91 | 45360 | OVERFELT | ROBERT | W | HENSLEY | DELIA | 9 | 6 | 1917 |
| 114 | 45466 | OVERFELT | STELLA | W | HENSLEY | DELIA | 9 | 17 | 1912 |
| 126 | 62719 | OVERFELT | TRUMAN | L | PHILYAS | MAYMIT | 10 | 16 | 1920 |
| 35 | 17199 | OVERFELT | VIRDA | M | TROBAYE | ANNIE | 4 | 12 | 1919 |
| 71 | 35478 | OVERFELT | WILLIAM | D | FORBIO | ELLER | 6 | 7 | 1920 |
| 45 | 22237 | OVERFILL | RAYMON | MCKINNEY | LIZZIE | 4 | 20 | 1914 | |
| 6 | 2674 | OVERFITT | MADURA | A | MATHEWS | MATTIE | 1 | 24 | 1913 |
| 41 | 20058 | OWEN | CARRIE | B | BALEB | NANNIE | 4 | 10 | 1913 |
| 52 | 25929 | OWEN | CHARLES | L | CRADDOCK | CONNEY | 5 | 4 | 1913 |
| 44 | 21641 | OWEN | DORA | HATCHER | LEE | 2 | 6 | 1914 | |
| 23 | 11422 | OWEN | DORA | HATCHER | LENA | 2 | 6 | 1914 | |
| 14 | 6509 | OWEN | EDITH | M | PATTERSON | SALLIE | 1 | 25 | 1918 |
| 126 | 62644 | OWEN | GARVINS | MCDANIEL | ROSIE | 12 | 10 | 1914 | |
| 82 | 40560 | OWEN | JAMES | R | PIERCE | OCTAVA | 8 | 27 | 1916 |
| 71 | 35056 | OWEN | JIM | H | MCDANIEL | ROSA | 2 | 18 | 1917 |
| 35 | 17197 | OWEN | KATHRYN | M | SANDERS | HETTIE | 4 | 24 | 1919 |
| 63 | 31320 | OWEN | MARY | B | THOMPSON | MARY | 7 | 1 | 1919 |
| 26 | 12768 | OWEN | MARY | K | PEARCE | OCTAVID | 3 | 3 | 1915 |
| 47 | 23483 | OWEN | ROBERT | E | WALSH | LOUISE | 5 | 7 | 1915 |
| 5 | 1713 | OWEN | ROSETTA | BALL | NANNIE | 1 | 22 | 1911 | |
| 50 | 24573 | OWEN | STANLEY | MCDANIEL | ROSIE | 5 | 13 | 1920 | |
| 126 | 62718 | OWEN | WALTER | THOMPSON | ELVISA | 9 | 10 | 1920 | |
| 145 | 57933 | OWEN | WILLIAM | H | WALSH | L | 11 | 21 | 1911 |
| 123 | 61271 | OWEN | WILLIAM | T | DALE | NELLIE | 8 | 6 | 1915 |
| 13 | 6464 | OWENS | ALLIE | L | SANDERS | HETTIE | 1 | 1 | 1916 |
| 81 | 40160 | OWENS | ELMA | M | PEIRCE | KATE | 7 | 23 | 1917 |
| 6 | 2665 | OWENS | HARRY | SANDERS | HETTIE | 1 | 7 | 1914 | |
| 98 | 48840 | OWENS | JAMES | E | JEFFRIES | FAY | 9 | 29 | 1916 |
| 51 | 25175 | OWENS | MARY | A | PATTERSON | SALLIE | 5 | 11 | 1916 |
| 101 | 50413 | OWENS | PAUL | I | JEFFRIES | FLOY | 10 | 13 | 1917 |
| 4 | 1935 | OWENS | RUTH | PATTERSON | SARAH | 12 | 11 | 1919 | |
| 40 | 19773 | OWENS | STERLING | P | ULTSHELER | LILLIAN | 4 | 9 | 1916 |