November is the month is the Church set aside to pray for the dead (although we should remember them in prayer all the time!) This prayer is from the Association of Marian Helpers. Visit them at www.marian.org or at prayforsouls.org.
Prayer for the Holy Souls
(for all our departed brothers and sisters)
Merciful Father, hear our prayer and console us. As we renew our
faith in Your Son, whom You raised from the dead, strengthen our hope
that all our departed brothers and sisters will share in His
resurrection, who lives and reigns with You and the Holy Spirit, one
God, for ever and ever. Eternal rest grant unto them, O lord, and let
perpetual light shine upon them.
May they rest in peace.