Morrill is not a popular first name. It is more often used as a boy (male) name.
First names and their meaning - Page 9452
Morvyn
Origin: Scottish-Gaelic. 
Meaning: Pale, Lives by the sea. 
Morvyn is not a popular first name. It is more often used as a boy (male) name. 
Moulton
Moulton is not a popular first name. It is more often used as a boy (male) name.
Mouser
Mouser is not a popular first name.
Mowbray
Mowbray is not a popular first name.
Mucker
Mucker is not a popular first name.
Mujab
Mujab is not a popular first name. It is more often used as a boy (male) name.
Mulch
Mulch is not a popular first name.
Munkhnaran
Munkhnaran is not a popular first name. It is more often used as a girl (female) name.
Muren
Muren is not a popular first name.