Cedars, almost certainly Blue Atlas cedars (Cedrus atlantica). Native to Atlas Mnts in northwest Africa, but grows reasonably well in warmer parts of N America.

Not with those nodding tips and that fluffy appearance - compare them instead with Cedrus deodara.

Also blue Atlas cedar is C. atlantica Glauca Group (as they say in Britain), with the wild species being Atlas cedar (C. atlantica).

Do both Atlas Cedars and Deoadar Cedars get the flat tops with age like Cedars of Lebanon?

The ones I remember seeing in central Tx do at around 40' or so. Those in east Tx. were around 90' and still growing up.