This could be Sarah's birth..
BATES, SARAH mmn TINGLEY
GRO Reference: 1844 S Quarter in LEWES CHAILEY WESTFIRLE AND NEWHAVEN Volume 07 Page 377
Maybe her parents marriage..
Sep 1843
BATES Edward Lewes &c 7 479
TINGLEY Sarah Lewes &c 7 479
Siblings...
BATES, SOPHIA mmn TINGLEY
GRO Reference: 1846 M Quarter in LEWES CHAILEY WESTFIRLE AND NEWHAVEN Volume 07 Page 423
BATES, EDWARD mmn TINGLEY
GRO Reference: 1848 J Quarter in LEWES CHAILEY WESTFIRLE AND NEWHAVEN Volume 07 Page 429
BATES, MARY ANN mmn TINGLEY
GRO Reference: 1849 S Quarter in LEWES CHAILEY WESTFIRLE AND NEWHAVEN Volume 07 Page 411
BATES, CHARLOTTE mmn TINGLEY
GRO Reference: 1850 D Quarter in LEWES CHAILEY WESTFIRLE AND NEWHAVEN Volume 07 Page 453