Would this combo work; loading Contingency and another spell into a glyph of warding? Or does glyph of warding only allow for the contingency spell to be loaded in without any additional spell?

What scenario exactly are you looking to pull off? GoW has a trigger system just as good as Contingency from what I understand, so why would you need it?

Quote from scatterbraind >>

What scenario exactly are you looking to pull off? GoW has a trigger system just as good as Contingency from what I understand, so why would you need it?

 Im wondering about buffs being placed on non-spell casters to trigger later on.

So like, Tenser's Transformation through contingency through glyph of warding on a fighter, triggering glyph of warding immediately to cast contingency on them, with Tenser's Transformation triggering whenever they draw a specific weapon in the next 10 days. 

Gets around glyph of warding's time and range constraints, if it works. 

I would say it works.  Contingency states that the "contingent spell" is cast as part of the casting of Contingency.  Glyph of Warding says the spell is stored by casting it as a part of creating the Glyph.

Both spells requires the casting or cast of another spell.

EDIT: Will not work with your Tenser's Transformation idea from another thread though.

The spell-stacking part seems ok, but as for casting Tenser's on a fighter, you've got a conflict between two specific rules:

Glyph of Warding says: "If the spell has a target, it targets the creature that triggered the glyph."

Contingency says: "The contingent spell takes effect only on you, even if it can normally target others."

In my opinion contingency seems "more specific" with that "even" clause, but there's no clear way to determine which one of these rules wins out.

Quote from scatterbraind >>

The spell-stacking part seems ok, but as for casting Tenser's on a fighter, you've got a conflict between two specific rules:

Glyph of Warding says: "If the spell has a target, it targets the creature that triggered the glyph."

Contingency says: "The contingent spell takes effect only on you, even if it can normally target others."

In my opinion contingency seems "more specific" with that "even" clause, but there's no clear way to determine which one of these rules wins out.

 The main problem is Tenser's is a 6th level spell.  Contingency only allows 5th or lower spells.  And if Tenser's was a 5th level spell I'm fine with them putting it on Contingency, Tenser's will just go on the Wizard when it is triggered lol.

Quote from scatterbraind >>

The spell-stacking part seems ok, but as for casting Tenser's on a fighter, you've got a conflict between two specific rules:

Glyph of Warding says: "If the spell has a target, it targets the creature that triggered the glyph."

Contingency says: "The contingent spell takes effect only on you, even if it can normally target others."

In my opinion contingency seems "more specific" with that "even" clause, but there's no clear way to determine which one of these rules wins out.

 Ah, I totally missed that conflict with contingency. Although, I wonder if that is a gray area since you aren't targeting yourself with the spell? But I would probably rule the way you have read it. 

As long as you have the material component for the contingency spell on you when the Glyph triggers, I would say the spell stacking works.