Need help please

What other claims is my mother entitled to such as Widow allowance?

The children are all too old to qualify for child benefit or child tax credit, though some of them may be entitled to their own benefits. If your mother is in rented accommodation and any of you are living with her, she may have "non-dependent deductions" taken from her housing benefit.

I would suggest she claims incapacity benefit, but ....

I might be wrong, but I think the fact that your mother has an illness is the reason why she doesn't have to sign on for JSA, and is able to get income support instead. I think she wouldn't be able to claim income support as a lone parent, because the children are all too old. You can only claim income support on grounds of ill health if you've tried to get incapacity benefit, but been rejected due to insufficient contribution record.

Sorry I haven't answered your question directly - I'll read up about widows and bereavement.

And is depression is considered as a Disability?

Not by itself - but get a claim form for "Disability Living Allowance" anyway. The form asks lots of incredibly personal questions, but don't be put off. DLA is awarded on a points-based system, with points awarded for specific impairments of ability. There are independent web sites with versions of the form, that calculate whether or not you would be awarded DLA - you can use these to help you fill in the real form.

The patient then needs to get someone else to sign the form, to say that it's true - usually a GP, CPN or social worker.

My youngest brother looks after my mother what is he entitled to?

If your mother was awarded DLA, then your brother might be able to get Carer's Allowance.

Not exactly a calculator but you should, if you answer the questions carefully be able to work out if a DLA claim is viable here Benefits and Work DLA Mental Health checklist

To confirm those results doublecheck here Benefitsnow dla checklist

Depression is a treatable condition and while many of us have to learn to live with it rather than saying we have been cured, it isn't something which should go untreated. Antidepressants are shown to be effective in controlling depression in around one third of cases with partial success in another third, but are ineffective in the remaining third. So if you mum has tried with antidepressants and failed other options should be considered. Cognitive Behaviour Therapy has been shown to be effective and is definitely worth a try as is the use of Supplement such as Omega 3 and Carnitine both of which have been shown to stabilise mood and reduce fatigue. ZIPVIT for Omega Juice [the highest/cheapest source of EPA I know and cheap Carnitine also. If you mum is always worse Xmas/New Year it may also be worth trying a lightbox. However she should be encouraged to seek further professional help as life can be worth living again even though when depressed one always believes there is no light at the end of the tunnel.

Currently getting Income support which is about £50 a week.
What other claims is my mother entitled to such as Widow allowance?

You can find details of benefits here
Benefits: a concise guide to benefits, pensions and tax credits, A guide (MG1) with further information and claim forms
at the DWP website.

If you are new to claiming then it would be worth reading the Benefitsandwork
Guide to Getting Help with your Benefits It might also be worth looking for local support from Mind uk Manic Depression Fellowship Sane as these groups may well have local support groups and the use of a person with Mental health experience to complete the DLA claim form will make the process a lot smoother.