Margaret your husband's pension was outrageously generous!
In today's money, for someone wishing to retire at 60 this year, in order to generate an annual pension income of 2 thirds of £50k (ie £33k) and have a lump sum as well, they would need to have saved just under £1million in their pension pot.
And that's for a level pension that never goes up with inflation and doesn't pay a widow's pension. In order to achieve those additional benefits the retiree would need to have saved at least another £500k.
It's a pretty tall order for someone whose final (presumably highest) salary is £50k to be able to save, whilst at the same time paying a mortgage and bringing up a family, £1.5million in 30 years. It could just about be possible, I suppose, if they happened to make some very lucky investment choices and lived very frugally all their working life. But in reality, it wouldn't happen, of course. The chances are that in the early days money would be tight and there would be none spare for savings, so the whole £1.5million would need to be saved within the final 15 years, which on that salary just wouldn't be anywhere near possible.
This is why FS public sector pensions are so unaffordable for the nation and why they are referred to by the rest of us (stuck with defined contribution schemes) as "gold plated."
I don't suppose for one moment that your DH's pension contributions amounted to anything close to the actual value of his pension. My guess is that he was probably contributing less than 10% of his salary.
I think you don't realise how very fortunate you are.