How To Write A Letter Of Recommendation For A Babysitter . Cowell, looking for a fun and reliable babysitter? Aim for the standard 12 point font size. 8+ Babysitter Reference Letter Templates Free Sample, Example, Format from www.template.net For example, you may write dear ms. Larossa, i am writing to you in reference to bonnie green. Green has been in my employ as a babysitter and mother's helper for the past four years.