1880 Pittsburgh, Allegheny PA Census
Annie CORLETT Self W Female W 31 ENG Keeping House ENG ENG
Thomas C. CORLETT Son S Male W 9 ENG At School ENG ENG
Annie J. CORLETT Dau S Female W 7 PA At School ENG ENG
William H. CORLETT Son S Male W 5 PA At Home ENG ENG
Bessa KISSUCK Sister S Female W 38 ENG At Home ENG ENG

Bessa Kissuck (Elizabeth Kissack) Ann's single sister is the key. She was born about 1842.

IGI: Father: John Kissack, Mother: Jane Cleator
1. MARY ANN KISSACK Christening: 06 JUL 1828 Jurby
2. JOHN KISSACK Christening: 13 MAR 1831 Jurby
3. JANE KISSACK Christening: 19 JAN 1834 Lezayre
4. WILLIAM KISSACK Christening: 04 SEP 1836 Lezayre
5. JANE KISSACK Christening: 24 MAR 1839 Lezayre
6. ELIZABETH KISSACK Christening: 27 FEB 1842 Lezayre
7. THOMAS KISSACK Christening: 02 JUN 1844 Lezayre
8. JAMES ROBERT KISSACK Christening: 06 SEP 1846 Lezayre
9. ANNE KISSACK Christening: 06 MAY 1849 Lezayre

IGI ANNE KISSACK THOMAS CORLETT
Marriage: 06 APR 1871 Lonan IOM

IGI THOMAS CHARLES CORLETT
Christening: 16 APR 1871 Laxey
Parents: THOMAS CORLETT ANN KISSACK

From this we can tell that Annie was the youngest daughter of Jane Cleator and John Kissack who moved from Jurby to Lezayre about 1833. Anne married Thomas Corlett Sr. in Lonan and had Thomas Jr. in Laxey IOM before immigrating to America in 1873.