| Birth | 6 Feb 1888 | Burlington, Racine, Wisconsin, United States | | | |
| Baptism | 12 Feb 1888 | Immaculate Conception/St Mary's, 108 Mchenry St,, Burlington, Racine, Wisconsin, United States | | | |
| Census (family)-shared | 22 Jun 1900 | (John Valentine ITZIN --8 and Amelia (Emilia) Elizabeth MAAS --9) Tower St., Burlington, Racine, Wisconsin, United States | | | |
| Graduation | Jun 1907 | Burlington High School, Burlington, Racine, Wisconsin, United States | | | |
| Occupation | 1907/08 | School Teacher - Slades Corners, Kenosha, Wisconsin, United States | | | |
| Residence | 1908 | 314 W Tower St - Burlington, Racine, Wisconsin, United States | | | |
| Census (family)-shared | 21 Apr 1910 | (John Valentine ITZIN --8 and Amelia (Emilia) Elizabeth MAAS --9) 605 Tower St, Burlington, Racine, Wisconsin, United States | | | |
| Residence | 1914 | 314 Tower St - Burlington, Racine, Wisconsin, United States | | | |
| Occupation | 1914 | a Teacher - Burlington, Racine, Wisconsin, United States | | | |
| Census (family)-shared | 15 Jan 1920 | (John Valentine ITZIN --8 and Amelia (Emilia) Elizabeth MAAS --9) Tower St., Burlington, Racine, Wisconsin, United States | | | |
| Death | 18 Jul 1925 | Burlington, Racine, Wisconsin, United States | | | |
| Burial | 20 Jul 1925 | St Mary's Catholic Cemetery (God's Acre Cemetery), Burlington, Racine, Wisconsin, United States | | | |