Babysitter Needed for my Children

We are looking for a babysitter every Tuesday 8-5 p.m. Our son started preschool, so it will be babysitting our 1 yr old from approx 8-12, and both children from 12-5. We have a old, smaller dog that can be contained. My wife works from home, so she is available for in case of emergencies. Our son has transportation to / from school, so only babysitting is needed.