Watching "Dax." The opening station log voiceover is an explanation of Colm Meaney's absence to film a movie -- "Chief O'Brien has escorted his wife back to earth to celebrate her mother's 100th birthday."
Rosalind Chao was 35 or 36 at the time. Her mom had her at age 64/65? Or did she just get caught in a Trek time vortex at some point?
Some famous historical examples:
Swietoslava (c. 1048-1126) consort of Duke and later King Vratislaus II of Bohemia, was the youngest child of Duke Casimir I of Poland (1016-1058) and his wife Maria Dobroniega (after 1012-1087), daughter of Grand Prince Vladimir I of Kiev (c. 958-1015). It is at least slightly possible that Maria Maria Dobroniega's mother was Anna Porphyrogenita (963-1011), which would make Swietosalva born about 85 years after her maternal grandmother.
Empress Constance (1154-1198) daughter of Roger II, the first King of Sicily (1095-1154) was 40 years, 1 month, and 22 days old when her son Emperor Fredrick II (1194-1250) was born 26 December 1154.
Eleanor of Aquitaine (1122-1204) was 44 years old when her youngest son King John (1166-1216) was born.
Princes Agnes of the Holy Roman Empire (1072/73-1143) married twice and had at least 22 children over a period of 30 year from 1088 to about 1118 when she was about 45 or 46.
Duke Leopold III of Austria (1 November 1351- 9 July 1386) was born when his mother Joanna of Pfirt (c. 1300-15 November 1351) was allegedly 51.
The oldest mother to conceive naturally is listed as Dawn Brooke age 59.
Thanks to modern assisted reproductive medicine, Maria del Carmen Bousada de Lara is listed as the oldest women to give birth aged 66 years 358 days. But other women are credited as giving birth up to age 70.
https://en.wikipedia.org/wiki/Pregnancy_over_age_50
It's also interesting to note that Keiko's mother was apparently around the age of 60 when she had Keiko (assuming Keiko was not much older than 40 in 2369).
http://memory-alpha.wikia.com/wiki/Keiko_O'Brien
In "The Neutral Zone" Data told the revived dead people that the year was now 2364 in their calendar.
RALPH: What year is this?
DATA: By your calendar two thousand three hundred sixty four.
Dr. crusher tells Clare Raymond:
CRUSHER: About three hundred and seventy years ago, you died of a massive embolism.
So Clare Raymond died about 1984 to 2004 in her calendar. Her age at death was 35.
DATA: I was able to retrieve some information from the ancient disk I removed from the module's computer. Her name is Clare Raymond, age thirty five, occupation homemaker. Must be some kind of construction work.
Clare Raymond should have been born about 1948 to 1969 in her calendar.
Troi locates some of Clare Raymond's descendants.
TROI: I've found something. I have been able to locate a family living outside of Indianapolis. The man's name is Thomas Raymond.
CLARE: That's my son's name. My son's name is Tommy.
TROI: Computer, let us see Thomas Raymond.
CLARE: Oh, my God. That's Donald. That's my husband.
TROI: Actually, it's your great, great, great, great, great grandson.
Thomas Raymond, Clare's great, great, great, great, great grandson, would be her descendant in seven generations gaps. Assuming that he was between 40 and 100 in 2364, he would have been born between 2264 and 2324, about 295 to 376 years after Clare was born, making about 42.1428 to 53.714 years per generation gap. That certainly implies that the average generation can be much longer in the future than in our era. So perhaps 60-year-old mothers are not so rare in the 24th century as in our era.
One would expect the data rods are just the safe backup in case the station's computers get wiped out again and stuff is actually stored in the computer.
