| Abbreviations used for dates | | doc | Documented | Primary source to support the given date. |
| lit | Literature | Secondary source to support the given date. |
| sgn | Signed | Date appearing on the glass along with the signature or mark. |
| insc | Inscribed | A date formally painted as part of the inscription. |
| plaq | Plaque | A date appearing on a plaque nearby. |
| mem | Memorial | A date of death appearing either on the glass or on a plaque nearby; note that the date of installation of a window could vary greatly from the memorial date. |
| circa | Circa | A likely date. |
