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.
Your car's brake system works on a hydraulic pressure system. Brake fluid serves as the hydraulic fluid that maintains that pressure. A leak in brake fluid will cause a drop in pressure, possibly resulting in brake failure. That's not something you want to happen as you're cruising down Dead Man's Hill going 60 MPH. Fortunately, in most modern cars, brake fluid leaks are rare.