Jill Duggar's birth name is Jill Michelle Duggar.
Jill Michelle Dillard (nee Duggar)
No.
Jackson Duggar's birth name is Jackson Levi Duggar.
James Duggar's birth name is James Andrew Duggar.
Jana Duggar's birth name is Jana Marie Duggar.
Jason Duggar's birth name is Jason Michael Duggar.
Jennifer Duggar's birth name is Jennifer Danielle Duggar.
Jeremiah Duggar's birth name is Jeremiah Robert Duggar.
Jessa Duggar's birth name is Jessa Lauren Duggar.
Johannah Duggar's birth name is Johannah Faith Duggar.
Joseph Duggar's birth name is Joseph Garrett Duggar.
Joshua Duggar's birth name is Joshua James Duggar.