Do you think ned , at the rebellion, raised an army bigger than robb’s one in two5k ?

Given that his army plus the Riverlands plus the Vale plus Robert’s forces added up to less than 40,000, I’m guessing no. (Although that’s probably due to GRRM’s problems with numbers…)

But Torrhen Stark brought 30,000 men into the Riverlands back during Aegon’s Conquest.