Which preposition to use with beside

of Occurrences 2%

One day I was settin' beside of mother; Major was out in the garden, fixin' up things, and settin' out a lot of blows she'd got in the woods, and singin' away, and says I to mother, "What be I going to do, mother, without you and Major?

in Occurrences 1%

Are there any beside in the house with you?'

Which preposition to use with  beside