Anne, it doesn't matter who did the Will - it should have gone to probate and is a public record, anyone has the right to see it.
As for his personal possessions, after more than two years it is likely that his wife has disposed of them especially as the house has been sold.
Unless the Will names you as a beneficiary you are unlikely to receive anything. If you are a beneficiary you will have legal recourse against the executor of the Will who is legally bound to ensure your late father's estate was properly dealt with. The executor could be his wife, a solicitor or anyone he trusted.
As bednobs rightly says, your father may not have written a Will, or it could have been conveniently destroyed, in which case his wife inherits everything unless his estate was worth over £250,000. The rules are set out here
https://www.gov.uk/inherits-someone-dies-without-will
Of course, your father could have given his wife everything before he died - put the house in her name, for example, to bring the value of his estate below the £250k threshold.
It is essential you get a copy of the Will for your own peace of mind