It is not uncommon first a life insurance lawyer to run across a situation where the issue is, Did the insured change the beneficiary of the life insurance policy.
Here is a 1953, Texas Supreme Court opinion dealing with this issue. It is styled, Creighton v. Barnes.
Petitioners, the mother, daughter and a sister of B. B. Barnes, as the named beneficiaries of the two Jefferson Standard Life Insurance Company policies, filed this suit against the Insurance Company for the proceeds of the two policies. The Insurance Company answered with an interpleader suit, wherein it impleaded respondent, the third wife and surviving widow of B. B. Barnes, and said that all of the petitioners and the respondent were claiming the right to the proceeds of both policies, and tendered the money into court, and asked the court to decide which of the claimants were entitled to receive the funds, and asked that it be discharged with its costs and attorneys’ fees. Respondent answered claiming the proceeds by virtue of the will of B. B. Barnes.