MLB player Jacob Turner throws right.
MLB player Jacob Turner bats right.
MLB player Justin Turner throws right.
MLB player Jacob Diekman throws left.
MLB player Jacob Realmuto throws right.
MLB player Corey Kluber throws right.
MLB player Justin Turner bats right.
Left
NHL player Jacob Josefson shoots left.
NHL player Jacob Markstrom shoots left.
MLB player Jacob deGrom bats left.
MLB player Jacob Diekman bats left.
There is no definitive information available publicly that confirms whether Jacob is left-handed or right-handed.