Jennie Ross - Mother

The Hints coming up for her family connections in other trees on Ancestry show a different mother for Jennie. They have:

Father
John M Ross (1815–1888)

Mother
Sarah Ann McGeehan (1818–1898)

but I'm not seeing any documentation other than what people have in their trees, both here and on Ancestry. Is there better evidence of which is her correct mother?

Thanks in advance for any info.