As I was rolling a new character using Books of Knights & Ladies, I noticed that, according to table 19, on page 41, if your father is an Officer, the Eldest Son (i.e. the Player-Knight) is also an Officer, +1 Wealth Level. Am I reading this correctly? Isn't an Officer a 24/7 job which precludes most classic adventuring activities of errant knights?

Not necessarily. Depends on which office is held and whether the gamemaster can work it into the adventure for the year. Sometimes a resourceful gm can make the officer duty the scenario for the year. Sometimes, yes you are unable to adventure. In this case, the officer's job could be run as a solo, while the brother can go on the real adventure.

Therefore, it depends on the gm and the player being a bit creative.

No that is incorrect. While offices can be hereditary, it is by no means automatic and certainly not something for the starting (first) PK. What the +1 Wealth means is that the PK starts with a better starting equipment.

EDIT:
Yep, there is a confusion between the CLASS of the Father (Knight) and his JOB (Officer). Otherwise, how can you have ALL of his sons inheriting the same office? No, they'd all be household knights. (There is a bit of ambiguity whether the Officer is a Household or a Vassal knight, but since all of his sons are of the same class, then that strongly implies he was a Household Knight.)

Oops, thanks for the catch. I did not read it correctly. The father is the officer. The office is not hereditary. Else, you could have a 3 year old as the officer if the father kicks the bucket too soon. What the player-knight receives is a bit more glory. Now, based upon that, he MAY be able to parley it into something better than just a household knight during the game by Role-playing it out and a goal that many would want, it does not guarantee anything.

I agree with all the above answers. Should this be in the errata?