William McIntyre Bexar Texas

[oldohiohome]

San Antonio city directories at ancestry.com.
And I doubt they had children if she was 45 or so when they married, certainly not six.

[hardsocks]

Maybe he was married before and divorced

[shellyesq]

The 1910 census says M2 for her marital status, which means that was her second marriage.  She may have been widowed or divorced.  She was old enough that her children may have all been grown if she had them at a young age or they may have been living with another family member.