I found some records that are totally messed up, but may have some clues to my Agnew ancestors. I did a search for Bartley Agnew at familysearch.org and then clicked on the batch number, and searched on that.

Batch Number: 0760052

1. JOHN AGNEW - International Genealogical Index
Gender: Male Birth: 02 OCT 1800 Mahoning Twp, Armstrong, Pennsylvania
2. JOHN AGNEW BAILEY - International Genealogical Index
Gender: Male Birth: 20 JAN 1832 Red Bank-Ven, , , Pennsylvania
3. HENRY GILBERT AGNEW DOBSON - International Genealogical Index
Gender: Male Birth: 09 DEC 1886 Homing Ridge, , Clarion, Pennsylvania
4. LEOMARD AGNEW BAILEY - International Genealogical Index
Gender: Male Birth: 12 JUN 1842 Homing Ridge, , Clarion, Pennsylvania
5. ELIZABETH AGNEW MCNAUGHTON - International Genealogical Index
Gender: Female Birth: 09 MAR 1858 Homing Ridge, , Clarion, Pennsylvania
6. WILLIAM H AGNEW DOBSON - International Genealogical Index
Gender: Male Birth: 21 JUN 1892 Homing Ridge, , Clarion, Pennsylvania
7. THOMA WESLEY AGNEW DOBSON - International Genealogical Index
Gender: Male Birth: 10 MAR 1894 Homing Ridge, , Clarion, Pennsylvania
8. BURNELL LINCON AGNEW MCNAUGHTON - International Genealogical Index
Gender: Male Marriage: 1885 Homing Ridge, , Clarion, Pennsylvania
9. ELSIE AGNEW DOBSON - International Genealogical Index
Gender: Female Birth: 30 JUN 1888 Homing Ridge, , Clarion, Pennsylvania
10. JOHN WAGNER AGNEW MCNAUGHTON - International Genealogical Index
Gender: Male Birth: 04 APR 1868 Homing Ridge, , Clarion, Pennsylvania
11. V. CLAUD AGNEW DOBSON - International Genealogical Index
Gender: Male Birth: 07 MAY 1900 Homing Ridge, , Clarion, Pennsylvania
12. ELLA JANE AGNEW MCNAUGHTON - International Genealogical Index
Gender: Female Birth: 09 MAR 1858 Homing Ridge, , Clarion, Pennsylvania
13. JAMES M AGNEW DOBSON - International Genealogical Index
Gender: Male Birth: 1898 Homing Ridge, , Clarion, Pennsylvania
14. WESTLEY MARTIN AGNEW MCNAUGHTON - International Genealogical Index
Gender: Male Birth: 14 MAY 1871 Homing Ridge, , Clarion, Pennsylvania
15. CATHERINE L AGNEW MCNAUGHTON - International Genealogical Index
Gender: Female Birth: 19 JAN 1867 Homing Ridge, , Clarion, Pennsylvania
16. BURNELL LINCOLN AGNEW MCNAUGHTON - International Genealogical Index
Gender: Male Birth: 13 OCT 1860 Homing Ridge, , Clarion, Pennsylvania
17. WADE L AGNEW MCNAUGHTON - International Genealogical Index
Gender: Male Birth: 16 SEP 1852 Homing Ridge, , Clarion, Pennsylvania
18. BARBARA IDA AGNEW MCNAUGHTON - International Genealogical Index
Gender: Female Birth: 23 DEC 1864 Homing Ridge, , Clarion, Pennsylvania
19. STELLA AGNEW DOBSON - International Genealogical Index
Gender: Female Birth: 15 JAN 1902 Homing Ridge, , Clarion, Pennsylvania
20. JOHN AGNEW - International Genealogical Index
Gender: Male Marriage: 1818 Homing Ridge, , Clarion, Pennsylvania
21. BARTLEY AGNEW MCNAUGHTON - International Genealogical Index
Gender: Male Birth: 18 JUN 1856 Homing Ridge, , Clarion, Pennsylvania
22. JOHN AGNEW BAILEY - International Genealogical Index
Gender: Male Marriage: 07 JUN 1855 , Clarion, Pennsylvania
23. ELLEN BAILEY - International Genealogical Index
Gender: Female Birth: 1800 Of, , Clarion, Pennsylvania
24. ELLEN BAILEY - International Genealogical Index
Gender: Female Marriage: 1818 Homing Ridge, , Clarion, Pennsylvania
25. MINNIC B DOBSON MAZE - International Genealogical Index
Gender: Female Birth: 10 MAR 1864 Misc, , , Pennsylvania
26. MINNC B DOBSON MAZE - International Genealogical Index
Gender: Female Marriage: 1885 Homing Ridge, , Clarion, Pennsylvania
27. MARGARET ANN MCNAUGHTON - International Genealogical Index
Gender: Female Birth: 1834 Helen Furnace, Highland Twp, Clarion, Pennsylvania
28. MARGARET ANN MCNAUGHTON - International Genealogical Index
Gender: Female Marriage: 07 JUN 1855 , Clarion, Pennsylvania

I think the surnames are all messed up because of mistranscribing the marriage of Bartley Allen Agnew to (perhaps?) Margaret Ann McNaughton.