DD was 8 months pulling up, 8.5 months cruising, 9.5 months 1st steps then 13 months walking (lazy so and so!)
DS was 8 months pulling up, 8.5 months cruising, 11 months first steps, 13 months walking.
Have to say I'm pretty sure DS could walk before 13 months but would only do it donkey-following-carrot-on-stick-style as he was too lazy to do it otherwise! :)