Should I put items I already paid tax in UK on tax return, and if I do. where do I put them- 2 are life insurance that matured and one is a UK occupational pension?

1) Endowment life insurance plan matured and UK statement says I do not need to put on tax return -No chargable gain.
2) Life insurance has matured, tax paid in UK.
3) Occupational pension plan payed out and tax payed in UK. 
where do I put them if I need to put on US tax return?
I have paper statements for all three.