We have minimized the use of abbreviations on this website in an effort to reduce confusion and misinterpretation. In those instances where abbreviations are used, the guide below will be of assistance.
| c or circa (date) | indicates date is close, but not exact, usually within 1-4 years |
| say (date) or est (date) | this date is only an estimate based on other events in order to establish a reasonable timeline for planning purposes. A semi-educated guess, it could be off as many as 10-15 years. |
| US Census | Population Schedule of United States |
| ED | Enumeration District number from census |
| dwl or hh | dwelling or household number from census |
| fam | family number from census |
| sh or pg | hand written sheet or page number on census |
| [###] | stamped sheet or page number on census sheet is shown in brackets |
| [abc] | added comments by the author |
