[af_vet_1981]

In v46-47 the Jews have identified His mother and His brothers. They understand this is His family.

The context can only mean one understanding. The brothers mentioned here are Mary's other children.

No, it is a false assertion that the context can only mean one understanding.

There remain two other possibilities in which They understand this is His family. Perhaps you are looking through your own cultural lens when accepting A Consistent and Unbroken Tradition is the straight and narrow path. Either of these explanations fit.
1. Joseph had other children with another woman and they are Jesus' brethren.
2. Jesus' brethren are cousins and still his family.

[ealgeone]

Yet we have no record of these other children when Jospeh and Mary had to register for the taxes. The argument is dismissed.

The word for cousin or relative is not used in the passage as previously noted. The argument is dismissed.