Here's why I use the last name Kleinik online. My grandpa was the youngest of SEVEN children. When his mom (my great-grandmother) died, his dad (my great-grandfather) sent him to live with an aunt and uncle. They raised him. My great-grandfather would later remarry, but chose to have my grandpa stay with who he was with currently because he knew his son would have a better life. When my grandpa grew up, he changed his last name from Kleinik to his aunt and uncle's last name.