CrueChief
Cocker Dad/RIP Bella
Incorrect:
Trump (R) 2
Obama (D) 2
Bush (R) 2
Clinton (D) 2
Bush (R) 2
Reagan (R) 3
Carter (D) 0
Ford (R) 1
Nixon (R) 4
Johnson (D) 2
Kennedy (D) 2
Eisenhower (R) 5
Truman (D) 4
Roosevelt (D) 8
R = 19
D = 20
Even if you do recess appointments, which are temporary, it still doesnt match your numbers. Only a few recess appointments havent been confirmed by the Senate. It is why you see some presidents have more appointments, but you dont count them twice and you dont count an Associate Justice being confirmed as Chief Justice, it's still only a single vacancy. I dont know where your number came from. Maybe you included people like Bork who was withdrawn because he couldnt get confirmed or you included an Associate to Chief?
Up until 2017 you had to get them passed the Senate with a 2/3 majority which required support of both parties. Hence why R presidents appointed D justices. But since the Dem's wouldnt even consider a Trump nomination, it was changed. I still dont agree with them doing that even though the D's did it with other judicial appointments. They wanted to push Garland through, even though he should not have been appointed. If anything a recess appointment would have been acceptable. But Obama wouldnt do it that way for political theatre to try and sway the election, which he ultimately did to Trump.
If you stop at Eisenhower the count is 20-8 GOP. You missed a Reagan appointee.