Reese Witherspoon shared a gorgeous snap of herself alongside her lookalike daughter Ava, sons Deacon and Tennessee, and husband Jim Toth to mark a very special occasion and share an important message.MORE: Reese Witherspoon’s never-before-seen childhood photo is too cute for wordsThe 44-year-old Legally Blonde actress took the time out from her Thanksgiving holiday weekend to give a special thank you to medical workers and frontline employees who have been diligently working throughout the