[TABLE=collapse]
[TR]
[TD]League[/TD]
[TD]AGE[/TD]
[TD]GP[/TD]
[TD]G[/TD]
[/TR]
[TR]
[TD]NHL[/TD]
[TD]37[/TD]
[TD]70[/TD]
[TD]29[/TD]
[/TR]
[TR]
[TD]NHL[/TD]
[TD]38[/TD]
[TD]69[/TD]
[TD]25[/TD]
[/TR]
[TR]
[TD]NHL[/TD]
[TD]39[/TD]
[TD]74[/TD]
[TD]39[/TD]
[/TR]
[TR]
[TD]NHL[/TD]
[TD]40[/TD]
[TD]76[/TD]
[TD]44[/TD]
[/TR]
[TR]
[TD]NHL[/TD]
[TD]41[/TD]
[TD]76[/TD]
[TD]31[/TD]
[/TR]
[TR]
[TD]NHL[/TD]
[TD]42[/TD]
[TD]63[/TD]
[TD]23[/TD]
[/TR]
[TR]
[TD]Retired[/TD]
[TD]43[/TD]
[TD]-[/TD]
[TD]-[/TD]
[/TR]
[TR]
[TD]Retired[/TD]
[TD]44[/TD]
[TD]-[/TD]
[TD]-[/TD]
[/TR]
[TR]
[TD]WHA[/TD]
[TD]45[/TD]
[TD]70[/TD]
[TD]31[/TD]
[/TR]
[TR]
[TD]WHA[/TD]
[TD]46[/TD]
[TD]75[/TD]
[TD]34[/TD]
[/TR]
[TR]
[TD]WHA[/TD]
[TD]47[/TD]
[TD]78[/TD]
[TD]32[/TD]
[/TR]
[TR]
[TD]WHA[/TD]
[TD]48[/TD]
[TD]62[/TD]
[TD]24[/TD]
[/TR]
[TR]
[TD]WHA[/TD]
[TD]49[/TD]
[TD]76[/TD]
[TD]34[/TD]
[/TR]
[TR]
[TD]WHA[/TD]
[TD]50[/TD]
[TD]58[/TD]
[TD]19[/TD]
[/TR]
[TR]
[TD]NHL[/TD]
[TD]51[/TD]
[TD]80[/TD]
[TD]15[/TD]
[/TR]
[/TABLE]
He was still going strong before he retired and when he returned to the NHL after 6 seasons in the WHA he scored 15 goals. I really doubt he would score as many goals in NHL as he did in the WHA, but if he could score 15 at age 51 in NHL I don't see why he couldn't score atleast half as many.
When talking about most goals after 30 it's worth pointing out because it's not like Howe just retired at 42 and returned 9 years later to statpad 15 more goals. He had scored a ton in the second best league in the world inbetween.