The Rabbis at the time ruled that since the dead could not be moved from the Old City they should be moved into a temporary grave until an opportunity would allow them to be re-interned on the Mount of Olives. Unfortunately that took another 19 years to happen.
.. in the Jewish Quarter of the Old City of Jerusalem some 40 fighters and others who were killed in the
battle for Old Jerusalem in 1948 had been buried in a pit there,
because of the siege;
They were those who had been killed in the previous two weeks of
fighting, but could not be removed from the Old City for burial
because of the battles. Though burial had never been permitted in
the Old City, the rabbis agreed that the situation left no other
choice. On May 21, a pit was dug near Beit Rothschild, and 23 of the
dead, which had been kept in the Misgav Ladach hospital in the
quarter, were buried there. Five days later, another 11 bodies were
The next day, May 27, four more Jews were killed in the battle. They
were taken to the Batei Machseh complex, but were unable to be buried
before they were burnt in a fire started by Arab vandals. They, and
others, were later buried by local Arabs in the same mass grave. The
bones bones of other Jews who were killed in the battles and possibly
buried nearby were never recovered.
...in 1967, after the city was liberated and unified, they were
reburied on the Mt. of Olives.
Forever My Jerusalem: A Personal Account of the Siege and Surrender of Jerusalem's Old City in 1948 By Puʻah Shṭainer Chapter 39