JAG,
There was no need for the Bible to say that children were drowned in the great flood of Noah's day because the reliable Scripture states:
Every living thing that moved on land died. The birds, the livestock and the wild animals died. All of the creatures that fill the earth also died. And so did every human being. 22 Every breathing thing on dry land died. 23 Every living thing on earth was wiped out. People and animals were destroyed. The creatures that move along the ground and the birds in the sky were wiped out. Everything on earth was destroyed. Only Noah and those with him in the ark were left k (Gen 7:21-23 NIRV).
The comprehensive language of 'every living thing', 'every human being', 'every breathing thing', and 'people and animals were destroyed' indicates that all children died, apart from those on the Ark.
We are not left to guess about this, Scripture has made it clear. It doesn't matter which version one uses, the result is the same: 'All flesh died' and that included 'every man'. 'All in whose nostrils was the breath of life' died'. 'Every living substance was destroyed' and that included 'man' (KJV).
Oz