The windshield washer fluid reservoir on a 1995 Ford Thunderbird is located in the
front of the engine compartment, typically on the passenger side (right side). It's usually a plastic tank, often somewhat translucent or clear, so you might be able to spot it easily. Look for a tank with a cap that resembles a gas cap but smaller.
However, it's best to consult your owner's manual for a precise location and diagram. The manual will give you the most accurate information for your specific vehicle.