This key explains how to read the following index
on births in Chubut.
| Column 1 | Surname given to the child (always the fathers' name) |
| Column 2 | Child's first names |
| Column 3 | Date of birth of the child |
| Column 4 | Father's name (usually only first names), and number following is the age of the father |
| Column 5 | Names of fathers' parents, each separated by commas. This information was not always recorded, and not all records have been included on this index |
| Column 6 | Mother's name (sometimes with surname), and the number following is the age of the mother |
| Column 7 | Names of mother's parents, each separated by commas. Again, this information was not always recorded, and not all records have been included on this index |
| Column 8 | References of registration books used. See next Table. |
- ES
- Esquel 1891-1899
- FB
- family bible of Roberts' family (Australia)
- G
- Gaiman 1893-1909, Gaiman 1900, Gaiman 1891-1899, Gaiman 1900
- GA
- Gaiman 1875-1893
- PM
- Puerto Madryn
- RJB
- Diary kept by Richard J. Berwyn who recorded the first names of the colonists before civil registrations became compulsory
- R
- Rawson 1900
- RA
- Rawson 1891-1895, Rawson (October) 1891-1899
- T
- Trelew 1900
- TR
- Trelew 1899
"?" appear when the author was unsure of actual spelling or meaning. Sometimes the surname of illegitimate children is not clear.
INF = the name of the informant to the Registry of the birth.
The square brackets [...] denotes where the person is from - for eexample"[231]" is the property (or chacra) number for that person. Names of properties are also sometimes recorded, and appear as such, "Bryn Gwyn".
There are numerous birth records which are missing. They were apparently destroyed in the early 1890's. However records of individuals may be tracked through the census which is quite comprehensive. There are also second registers with similar information recorded - this is because a copy of each book was made for the central authority in Buenos Aires. Indications are that the Archives Office in Buenos Aires does not have a copy of the missing birth records.
Birth notices appeared in the local newspaper of the Chubut Valley "Y Draford", copies of which are held in the local museum in Gaiman, and also in the Welsh National University Library - it may be consulted for extra information on births, although "Y Draford" was not published continuously.