In the latter case the donor provides the family's name and address to the charity at the time the gift is made. Even if you don't make a gift, a note or card to the deceased's family expressing your thoughts of the deceased is a welcome gesture, especially if you weren't able to attend the funeral.
If the pedal is still mushy or slowly sinks under pressure, with the outlet ports blocked, the master cylinder is bad. With the ports plugged, if the brake pedal is very high and firm, the problem is not with the cylinder.
Warped brake rotors are the most common cause of braking vibrations. In addition to a vibration, warped rotors may cause your calipers not to release completely and lead to uneven brake pad wear that will cause your brake pads to need to be replaced sooner than they should.