  We adopt the fixed node restricted path integral Monte Carlo method within
the "Worm algorithm" to simulate Wigner's Jellium model at finite, non zero,
temperatures using free-particle nodes of the density matrix. The new element
is that we incorporate the Worm algorithm paradigm of Prokof'ev and Svistunov
in the grand canonical ensemble in order to more efficiently handle the
fermionic exchanges. We present results for the structure and thermodynamic
properties of the ideal Fermi gas and three points for the interacting electron
gas. We treat explicitly the case of the partially polarized electron gas.
