The original OP contacted the paid-for UK Visa and Immigration team and asked them the same question.
Their reply is as follows:
[OP and his daughter] can apply as dependants on [OP's wife's] ancestry visa.
When you make visa application on www.visa4uk.fco.gov.uk website, when it comes to chose options to select visa, you need to fill details as ...
It would *appear so. DutchCitizenship.com has a 4 point test, that you qualify IF:
Since 2010 Latent Dutch Citizens can obtain Dutch nationality by
following the Option Procedure.
Born before January 1, 1985
Born to a Dutch mother
Your mother was a Dutch citizen at the time of your birth.
Born to a non-Dutch father
No. Put your current address. It's more important for them to know where you live and where they can send things to you than it is for the address to match the one in your passport. It's entirely normal for people not to live in the same place for the entire life of a document with long validity such as a passport.
If South African law requires you to ...
According to UK Ancestry visa:
You can apply for a UK Ancestry visa if you:
are able and planning to work in the UK
It's unclear from your question whether the 9 years of living in the UK was recently (i.e. you still live there) or some time ago, and you are currently living somewhere else. This will make a difference for what you are eligible for.
There is no ancestry visa in the Netherlands. However, you may be a Dutch national or a former Dutch national. In the former case, you should apply for a Dutch passport. In the latter case, you may qualify for a simplified naturalization procedure, or to regain your Dutch citizenship by "option."
In particular, you should determine whether there is an ...
Disclaimer: I am not a lawyer nor do I have any other official capacity, so please take everything here with a grain of salt. All the following translations are mine, not in any way official or binding.
Foreign nationals that have proven Czech origins, may apply for a permanent residence permit for reasons worthy of consideration …, ...