As far as I know, there weren't any DP camps in Siberia. These were mainly in Europe ( Germany, Italy, Austria ), British Africa and India, Iran ( as it was occupied by Britain at the time ).
There were thousands of camps across Siberia, and without further information I think your chances of finding out which one are slim.
Here is a list of Gulags, which were forced labour camps, but there were also corrective labour colonies and special settlements, all of which would have come under the general term Gulag. I've read accounts of women working on farms in Siberia, whether these would have come under the term Gulag I have no idea.
Do you know anything more than you have written here? It's not a lot to go on to be honest.
Men were usually separated from their family, so often women and children would be in different camps.
Of the 3 waves of deportation of Poles in 1940, the second wave in April consisted of mainly women and children who were mostly deported to Kazakhstan ( part of which lies within Siberia ), and Altai Krai ( within Siberia ). Of course they could have been deported earlier or later than April.
Not sure whether this link will be useful, but scroll down to Kresy, there is a link you can click on, The Kresy-Siberia list which might be helpful to you.
i believe he ended up in Anglesey.
All I can find in reference to Anglesey is the 2 Polish army units resettlement corps camps, listed under Wales:-